Fixes #669 - Merge environment variables pages

Author: ralf401

admin/console.rst

@@ -91,8 +91,8 @@ It allows you to run several commands inside it.
    available.
 
    However, it's possible to start rails console in safe mode by setting
-   :ref:`a special environment variable <safe_mode>`. With
-   ``ZAMMAD_SAFE_MODE=1`` set, availability of these services will be ignored.
+   the environment variable ``ZAMMAD_SAFE_MODE=1``. With this setting enabled,
+   the availability of these services will be ignored.
 
    .. tabs::
 

api/ticket.rst

@@ -16,5 +16,4 @@ For better overview, they have been split into different sections:
       /api/ticket/states
       /api/ticket/tags
       /api/ticket/index
-      /api/ticket/ticket-summary
       /api/ticket/timeaccounting

api/ticket/ticket-summary.rst

@@ -1,5 +1,6 @@
 If you've set any environmental settings like higher web concurrency
-due to required :ref:`performance_tuning`, please re-apply your settings now.
+due to required :ref:`performance-tuning`, please re-apply your
+settings now.
 
 If not already done, please install Elasticsearch now (if you want to use it).
 Follow :ref:`configure_zammad_with_elasticsearch` to reconfigure your

appendix/backup-and-restore/add-missing-environment.include.rst

@@ -100,7 +100,7 @@ or availability:
      :doc:`here </appendix/migrate-to-postgresql>` how to manually switch
      databases.
    * System settings (like
-     :doc:`environment variables </appendix/configure-env-vars>`) are
+     :doc:`environment variables </appendix/environment-variables>`) are
      not backed up.
    * Restore to an older Zammad version is not possible.
    * **Do not** restore backup files from custom scripts with the

appendix/backup-and-restore/index.rst

@@ -19,8 +19,8 @@ note this in the relevant parts.
    received an attachment dump! 🤓
 
 Step 1: Note down your environmental adjustments
-   This mainly affects :ref:`performance tuning settings <performance_tuning>`.
-   This will be important after restoring.
+   This mainly affects :ref:`performance-tuning` via environment variables and
+   will be important after restoring.
 
 Step 2: Install Zammad on the destination host
    For the easiest restoration path possible, please install the same version