website/docs: maintenance, re-add system settings (#9026)

* update screenshots

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* unrelated: fix api schema

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* required working anchors

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* add system settings page

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* fix broken anchors

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* use client-side-redirects plugin

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* Optimised images with calibre/image-actions

* Revert "use client-side-redirects plugin"

This reverts commit 3103433617.

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: authentik-automation[bot] <135050075+authentik-automation[bot]@users.noreply.github.com>

website/docs/releases/2023/v2023.2.md

@@ -21,7 +21,7 @@ slug: "/releases/2023.2"
 
 -   Generated avatars, multiple avatar modes
 
-    authentik now supports multiple avatar modes, and will use the next configured mode when a mode doesn't have an avatar. For example, the new default configuration attempts to use gravatar, but if the user's email does not have a gravatar setup, it will instead use the new generated avatars. See [Configuration](../../installation/configuration.mdx#authentik_avatars)
+    authentik now supports multiple avatar modes, and will use the next configured mode when a mode doesn't have an avatar. For example, the new default configuration attempts to use gravatar, but if the user's email does not have a gravatar setup, it will instead use the new generated avatars. See [Configuration](../../core/settings.md#avatars)
 
 ## Upgrading