[FEATURE] Introduce "Integrations" hub (module) (#6132)

* [FEATURE] Introduce "Integrations" hub (module)

References: TYPO3-Documentation/Changelog-To-Doc#1390
Releases: main

* [DOCS] Language checks

Releases: main

---------

Co-authored-by: Sarah McCarthy <sarahmccarthy123@yahoo.com>

Author: linawolf

Documentation/ApiOverview/Webhooks/Index.rst

@@ -1,12 +1,19 @@
+:navigation-title: Webhooks and reactions
+
 ..  include:: /Includes.rst.txt
 ..  index::
     Webhooks
     Reactions
 .. _webhooks:
 
-======================
-Webhooks and reactions
-======================
+=======================================================
+Webhooks and reactions: Integration of external systems
+=======================================================
+
+..  versionchanged:: 14.0
+    The backend module for the reactions was moved to
+    :guilabel:`System > Integrations > Reactions` and the module for the webhooks
+    to :guilabel:`System > Integrations > Webhooks`
 
 A webhook is an automated message sent from one application to another via HTTP.
 It is defined as an authorized POST or GET request to a defined URL. For

Documentation/Configuration/Typo3ConfVars/HTTP.rst

@@ -90,7 +90,7 @@ for more background information on many of those settings.
         :Default: null
 
         For now, the only supported array key is `webhooks` to configure an array
-        of allowed hostnames that webhooks of `EXT:webhooks`are allowed to connect to
+        of valid hostnames that webhooks of `EXT:webhooks` are allowed to connect to
         (see :issue:`106229` as a protection against DNS rebinding).
 
         Wildcards in the array values are allowed, like `*.example.com`.