fix: convert ditaa diagram to png

modules/admin_manual/pages/configuration/server/security/oauth2.adoc

@@ -24,6 +24,8 @@ Here is an overview of how the process works:
 
 // Based on the kroki extension. Marked for ease of finding. Be aware that this renders by default to svg which has issues when building pdf. ATM, this is not an issue as this document is not part of the pdf (too deep in the level limit) and because the extension is not added to the pdf build call. This would need an adjustment of the script. Be aware that tabs.js MUST be excluded in case (html only)! https://github.com/Mogztter/asciidoctor-kroki
 
+image:configuration/server/security/oauth2-workflow-diagram.png[]
+////
 [ditaa, "OAuth2 workflow diagram"]
 ----
      +----------+
@@ -35,7 +37,8 @@ Here is an overview of how the process works:
           |
          (B)
           | 
-     +----|-----+          Client Identifier      +---------------+
+          |
+     +----------+          Client Identifier      +---------------+
      |          |----(A)-- & Redirection URI ---->|               |
      |  User-   |                                 | Authorization |
      |  Agent   |----(B)-- User authenticates --->|     Server    |
@@ -54,7 +57,7 @@ Here is an overview of how the process works:
      |         |<---(E)----- Access Token -------------------+
      +---------+       (w/ Optional Refresh Token)
 ----
-
+////
 
 == The OAuth2 App
 

modules/admin_manual/pages/enterprise/external_storage/ldap_home_connector_configuration.adoc

@@ -20,6 +20,8 @@ The Windows home directory can be published as a share and due to the permission
 To integrate a user's home folder from Windows into ownCloud, the Home share is locally mounted. An LDAP attribute is added to the user's profile containing the path of the local mount and then used by the LDAP Home Connector to show the user's home in ownCloud.
 
 // Based on the kroki extension.
+image:enterprise/external_storage/ldap-home-connector/ldap-home-connector-diagram.png[]
+////
 [ditaa, "LDAP User Home diagram"]
 ----
    +---------------+                          +------------------+
@@ -62,6 +64,7 @@ To integrate a user's home folder from Windows into ownCloud, the Home share is
                         |    user home   |
                         +----------------+
 ----
+////
 
 == Prerequisites