[TASK] Migrate "Reference Index" check into EXT:install

References: https://review.typo3.org/c/Packages/TYPO3.CMS/+/90955
Releases: main

Author: linawolf

Documentation/Concepts/Backend/AdminTools/Maintenance.rst

@@ -67,3 +67,25 @@ You can also create a new backend user from the console:
 
 and from the module :guilabel:`System > Backend Users`. The latter cannot
 grant system maintainer rights but is available to all admins.
+
+..  _admin-tools-maintenance-reference-index:
+
+Check and Update Reference Index
+================================
+
+..  versionchanged:: 14.0
+    This tool has been moved here from module :guilabel:`System > DB Check`.
+
+TYPO3 keeps a record of relations between all records.
+This may get out of sync when certain operations are performed
+without the strict context of the backend. It is therefore
+useful to update this index regularly.
+
+You can also use the following console command:
+
+..  code-block:: bash
+
+    ddev typo3 referenceindex:update
+
+The console command has the advantage that it does not cause time outs on large
+pages.

Documentation/Concepts/Backend/SystemModules/Index.rst

@@ -106,6 +106,10 @@ When you are not familiar with cron jobs we refer to https://en.wikipedia.org/wi
 DB check (optional)
 ===================
 
+..  versionchanged:: 14.0
+    The tool :guilabel:`Check and Update Reference Index` has been moved to
+    :guilabel:`Admin Tools > Maintenance`
+
 This module is only available if the system extension
 :composer:`typo3/cms-lowlevel` is installed.
 
@@ -120,12 +124,6 @@ Search
     A tool to search through the whole database. It offers an
     advanced mode which is similar to a visual query builder.
 
-Check and update global reference index
-    TYPO3 CMS keeps a record of relations between all records.
-    This may get out of sync when certain operations are performed
-    without the strict context of the backend. It is therefore
-    useful to update this index regularly.
-
 Some third party extensions offer similar but extended functionality around
 the database, for example :composer:`fixpunkt/backendtools` can be used during
 development to find all pages that contain a certain plugin or that use