Add ref to front-end docs

Signed-off-by: Joas Schilling <coding@schilljs.com>

developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_25.rst

@@ -23,7 +23,7 @@ SCSS support removal
 
 With 25, we removed the support for scss files provided by apps.
 Please handle your own compilation, move to a vue app or move back to css.
-See `Github issue <https://github.com/nextcloud/server/issues/32060>`_.
+See `Github issue #32060 <https://github.com/nextcloud/server/issues/32060>`_.
 
 Front-end changes
 -----------------
@@ -37,7 +37,7 @@ or not and maintaining a more detailed list is too much effort, we went for a gl
 public javascript API call to determine whether the user used the opt-out: ``OCP.Accessibility.disableKeyboardShortcuts()``.
 If that is the case, no additional shortcuts shall be registered by any app. Only ``space`` to toggle checkboxes and
 ``enter`` to submit the currently active buttons/links are okay to be used.
-See `Github issue <https://github.com/nextcloud/server/pull/34081>`_.
+See `Github issue #34081 <https://github.com/nextcloud/server/pull/34081>`_ and :ref:`JavaScript Frontend documentation <basics_frontend_javascript_keyboard_shortcuts>`.
 
 Back-end changes
 ----------------

developer_manual/basics/front-end/js.rst

@@ -150,6 +150,8 @@ function
 Now state will contain the provided state which you can use as any variable. It
 is as simple as that.
 
+.. _basics_frontend_javascript_keyboard_shortcuts:
+
 
 Keyboard shortcuts
 ------------------