[TASK] Add required datetime field to EXT:styleguide

A new field "input_3" is added to EXT:styleguide
for the "Formengine - required" handling.

Until now only a normal "date" (without time)
element was available. For future refactorings
and changes of the required field handling,
review module and datetime changes, this
should be available to test easily.

Resolves: #105906
Releases: main, 13.4
Change-Id: I2b8ef039f9868898b45fce047122be42ff57afd2
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/87678
Tested-by: Garvin Hicking <gh@faktor-e.de>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Garvin Hicking <gh@faktor-e.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>

Author: garvinhicking

typo3/sysext/styleguide/Configuration/TCA/tx_styleguide_required.php

@@ -46,6 +46,14 @@
                 'required' => true,
             ],
         ],
+        'input_3' => [
+            'label' => 'input_3 eval=required,trim,datetime',
+            'config' => [
+                'type' => 'datetime',
+                'format' => 'datetime',
+                'required' => true,
+            ],
+        ],
         'color_1' => [
             'label' => 'color_1',
             'config' => [
@@ -367,7 +375,7 @@
                 --div--;not required,
                     notrequired_1,
                 --div--;Input,
-                    input_1, input_2,
+                    input_1, input_2, input_3,
                 --div--;Link,
                     link_1,
                 --div--;Text,