[DOCS] Streamline installation chapters of system extension manuals

The content of the installation chapter of the various system
extension differs, some don't have an installation chapter. This
is now streamlined: now every installation chapter has the
Composer-based installation and the legacy installation described
in the same way.

Resolves: #103308
Releases: main, 12.4
Change-Id: I7750ab3139e468a16c48e22a8e5659947713872a
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83290
Tested-by: Lina Wolf <112@linawolf.de>
Reviewed-by: Chris Müller <typo3@krue.ml>
Tested-by: Chris Müller <typo3@krue.ml>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Lina Wolf <112@linawolf.de>

typo3/sysext/adminpanel/Documentation/Installation/Index.rst

@@ -24,7 +24,7 @@ This should either give you no result or something similar to:
 
 ..  code-block:: none
 
-    typo3/cms-adminpanel v12.4.1
+    typo3/cms-adminpanel       v12.4.11
 
 If it is not installed yet, use the ``composer require`` command to install
 the extension:
@@ -45,7 +45,7 @@ not be activated yet. Activate it as follows:
     module.
 #.  Click the :guilabel:`Activate` icon for the Admin Panel extension.
 
-..  figure:: ../Images/InstallActivate.png
+..  figure:: /Images/InstallActivate.png
     :class: with-border
     :alt: Extension manager showing Admin Panel extension
 

typo3/sysext/dashboard/Documentation/Installation/Index.rst

@@ -9,40 +9,42 @@ Installation
 
 Target group: **Administrators**
 
-This extension is part of the TYPO3 core.
+This extension is part of the TYPO3 Core, but not installed by default.
 
-Installation with composer
+..  contents:: Table of contents
+    :local:
+
+Installation with Composer
 ==========================
 
-Check whether you are already using the extension with::
+Check whether you are already using the extension with:
 
-   composer show | grep dashboard
+..  code-block:: bash
 
-This should either give you no result or something similar to:::
+    composer show | grep dashboard
 
-   typo3/cms-dashboard v10.4.0 Dashboard for TYPO3.
+This should either give you no result or something similar to:
 
-If it is not yet installed, use the ``composer require`` command to install the extension::
+..  code-block:: none
 
-   composer require typo3/cms-dashboard ^10.4
+    typo3/cms-dashboard       v12.4.11
 
-The given version depends on the version of the TYPO3 core you are using.
+If it is not installed yet, use the ``composer require`` command to install
+the extension:
 
-Now head over to the extension manager and activate the extension.
+..  code-block:: bash
 
-.. figure:: ../Images/em.png
-   :class: with-shadow
-   :alt: Extension manager with filtered dashboard extension
+    composer require typo3/cms-dashboard
 
-   Extension manager with filtered dashboard extension
+The given version depends on the version of the TYPO3 Core you are using.
 
-Installation without composer
+Installation without Composer
 =============================
 
-In an installation without composer, the extension is already shipped. You just have to activate it.
+In an installation without Composer, the extension is already shipped. You just have to activate it.
 Head over to the extension manager and activate the extension.
 
-.. figure:: ../Images/em.png
+.. figure:: /Images/em.png
    :class: with-shadow
    :alt: Extension manager with filtered dashboard extension
 

typo3/sysext/felogin/Documentation/Index.rst

@@ -40,6 +40,7 @@ in to the TYPO3 frontend.
    :titlesonly:
 
    Introduction/Index
+   Installation/Index
    UsersManual/Index
    LoginMechanism/Index
    Configuration/Index

typo3/sysext/felogin/Documentation/Installation/Index.rst

@@ -0,0 +1,57 @@
+.. include:: /Includes.rst.txt
+
+.. _installation:
+
+============
+Installation
+============
+
+This extension is part of the TYPO3 Core, but not installed by default.
+
+..  contents:: Table of contents
+    :local:
+
+Installation with Composer
+==========================
+
+Check whether you are already using the extension with:
+
+..  code-block:: bash
+
+    composer show | grep felogin
+
+This should either give you no result or something similar to:
+
+..  code-block:: none
+
+    typo3/cms-felogin       v12.4.11
+
+If it is not installed yet, use the ``composer require`` command to install
+the extension:
+
+..  code-block:: bash
+
+    composer require typo3/cms-felogin
+
+The given version depends on the version of the TYPO3 Core you are using.
+
+Installation without Composer
+=============================
+
+In an installation without Composer, the extension is already shipped but might
+not be activated yet. Activate it as follows:
+
+#.  In the backend, navigate to the :guilabel:`Admin Tools > Extensions`
+    module.
+#.  Click the :guilabel:`Activate` icon for the Frontend Login extension.
+
+..  figure:: /Images/InstallActivate.png
+    :class: with-border
+    :alt: Extension manager showing Frontend Login extension
+
+    Extension manager showing Frontend Login extension
+
+Next steps
+==========
+
+:ref:`Configure the Frontend Login <configuration>`.

typo3/sysext/fluid_styled_content/Documentation/Installation/Index.rst

@@ -6,76 +6,54 @@
 Installation
 ============
 
-.. _installation_composer:
-
-With Composer
-=============
-
-If your :ref:`TYPO3 installation <t3start:install>` is using Composer,
-install the extension `fluid_styled_content` by:
-
-.. code-block:: bash
-
-    composer require typo3/cms-fluid-styled-content
+This extension is part of the TYPO3 Core.
 
-If you are not working with the latest version of TYPO3
-you will need to add a version constraint:
+..  contents:: Table of contents
+    :local:
 
-.. code-block:: bash
+.. _installation_composer:
 
-    composer require typo3/cms-fluid-styled-content:"^10.4"
+Installation with Composer
+==========================
 
-Installing the extension prior to TYPO3 11.4
---------------------------------------------
+Check whether you are already using the extension with:
 
-Before TYPO3 11.4 it was still necessary to manually activate extensions
-installed via Composer using the :guilabel:`Extensions` module.
+..  code-block:: bash
 
-If you are using TYPO3 with Composer and are using a version of TYPO3 that is
-older than 11.4, you will need to activate the extension:
+    composer show | grep fluid-styled-content
 
-- Access :guilabel:`Admin Tools > Extensions > Installed Extensions`
-- Search for `fluid_styled_content` (note the underscores)
-- Activate the extension by selecting the :guilabel:`Activate` button in the
-  column labeled :guilabel:`A/D`
+This should either give you no result or something similar to:
 
-.. _installation_legacy:
+..  code-block:: none
 
-Without Composer
-================
+    typo3/cms-fluid-styled-content       v12.4.11
 
-If you are working with a
-:ref:`legacy installation <t3start:legacyinstallation>` of TYPO3, this
-extension will already be part of the installation due to the fact that
-"classic" `.tar` & `.zip` packages come bundled with all system extensions.
+If it is not installed yet, use the ``composer require`` command to install
+the extension:
 
-However, whilst the extension is already downloaded, it might not be activated.
+..  code-block:: bash
 
-To activate the extension `fluid_styled_content`, navigate to
-:guilabel:`Admin Tools > Extensions > Installed Extensions` and
-search for `fluid_styled_content` (note the underscores). If the extension
-is not active, activate it by selecting
-the :guilabel:`Activate` button in the column labeled :guilabel:`A/D`.
+    composer require typo3/cms-fluid-styled-content
 
-.. figure:: /Images/ManualScreenshots/Installation/ActivateExtension.png
-   :alt: Activate the extension by clicking the Activate button.
+The given version depends on the version of the TYPO3 Core you are using.
 
-   Activate the extension by clicking the :guilabel:`Activate` button.
+.. _installation_legacy:
 
-System Maintainer rights are required to activate the extension.
+Installation without Composer
+=============================
 
-.. _upgrading:
+In an installation without Composer, the extension is already shipped but might
+not be activated yet. Activate it as follows:
 
-Upgrade
-=======
+#.  In the backend, navigate to the :guilabel:`Admin Tools > Extensions`
+    module.
+#.  Click the :guilabel:`Activate` icon for the Fluid Styled Content extension.
 
-If you upgrade your TYPO3 CMS installation from one major version to another
-(for example 10.4 to 11.5), it is advised to run the
-:ref:`Upgrade Wizard <t3install:postupgradetasks>`.
-It guides you through the necessary steps to upgrade your database records.
+..  figure:: /Images/ManualScreenshots/Installation/ActivateExtension.png
+    :class: with-border
+    :alt: Extension manager showing Fluid Styled Content extension
 
-Open the tool at :guilabel:`Admin Tools > Upgrade > Upgrade Wizard` and run all
-suggested steps.
+    Extension manager showing Fluid Styled Content extension
 
 Next step
 =========

typo3/sysext/form/Documentation/Index.rst

@@ -40,6 +40,7 @@ integrators and developers alike to create all kinds of forms.
    :titlesonly:
 
    Introduction/Index
+   Installation/Index
    QuickStartForEditors/Index
    QuickStartForIntegrators/Index
    D/Index

typo3/sysext/form/Documentation/Installation/Index.rst

@@ -0,0 +1,52 @@
+.. include:: /Includes.rst.txt
+
+.. _installation:
+
+============
+Installation
+============
+
+This extension is part of the TYPO3 Core, but not installed by default.
+
+..  contents:: Table of contents
+    :local:
+
+Installation with Composer
+==========================
+
+Check whether you are already using the extension with:
+
+..  code-block:: bash
+
+    composer show | grep form
+
+This should either give you no result or something similar to:
+
+..  code-block:: none
+
+    typo3/cms-form       v12.4.11
+
+If it is not installed yet, use the ``composer require`` command to install
+the extension:
+
+..  code-block:: bash
+
+    composer require typo3/cms-form
+
+The given version depends on the version of the TYPO3 Core you are using.
+
+Installation without Composer
+=============================
+
+In an installation without Composer, the extension is already shipped but might
+not be activated yet. Activate it as follows:
+
+#.  In the backend, navigate to the :guilabel:`Admin Tools > Extensions`
+    module.
+#.  Click the :guilabel:`Activate` icon for the Form extension.
+
+..  figure:: /Images/InstallActivate.png
+    :class: with-border
+    :alt: Extension manager showing Form extension
+
+    Extension manager showing Form extension

typo3/sysext/impexp/Documentation/Installation/Index.rst

@@ -6,54 +6,51 @@
 Installation
 ============
 
+This extension is part of the TYPO3 Core, but not installed by default.
+
+..  contents:: Table of contents
+    :local:
+
 .. _installation_composer:
 
-With Composer
-=============
+Installation with Composer
+==========================
 
-If your TYPO3 installation is using Composer, install the import/export
-extension by:
+Check whether you are already using the extension with:
 
-.. code-block:: bash
+..  code-block:: bash
 
-    composer require typo3/cms-impexp
+    composer show | grep impexp
 
-If you are using Composer and not working with the latest version of TYPO3
-you will need to add a version constraint:
+This should either give you no result or something similar to:
 
-.. code-block:: bash
+..  code-block:: none
 
-    composer require typo3/cms-impexp:"^10.4"
+    typo3/cms-impexp       v12.4.11
 
-Installing the extension prior to version 11.4
-----------------------------------------------
+If it is not installed yet, use the ``composer require`` command to install
+the extension:
 
-Before TYPO3 11.4 it was still necessary to manually activate extensions
-installed via Composer using the Extension Manager.
+..  code-block:: bash
 
-If you are using TYPO3 with Composer and are using a version of TYPO3 that is
-older than 11.4, you will need to activate the extension:
+    composer require typo3/cms-impexp
 
-- Access :guilabel:`Admin Tools > Extension Manager > Installed Extensions`
-- Search for `impexp`
-- Activate the extension by selecting the :guilabel:`Activate` button in the
-  column labeled :guilabel:`A/D`
+The given version depends on the version of the TYPO3 Core you are using.
 
 .. _installation_legacy:
 
-Without Composer
-================
+Installation without Composer
+=============================
 
-If you are working with an installation of TYPO3 that doesn't use Composer, this
-extension will already be part of the installation due to the fact that
-"classic" `.tar` & `.zip` packages come bundled with all system extensions.
+In an installation without Composer, the extension is already shipped but might
+not be activated yet. Activate it as follows:
 
-However, whilst the extension is already downloaded, it is likely that the
-extension is not activated.
+#.  In the backend, navigate to the :guilabel:`Admin Tools > Extensions`
+    module.
+#.  Click the :guilabel:`Activate` icon for the Import / Export extension.
 
-To activate the import/export tool, navigate to
-:guilabel:`Admin Tools > Extension Manager > Installed Extensions` and
-search for "impexp". If the extension is not active, activate it by selecting
-the :guilabel:`Activate` button in the column labeled :guilabel:`A/D`.
+..  figure:: /Images/ManualScreenshots/InstallActivate.png
+    :class: with-border
+    :alt: Extension manager showing Import / Export extension
 
-Admin rights are required to activate the extension.
+    Extension manager showing Import / Export extension