help: Document "User list style" display setting.

- Documents the "User list style" (under Settings > Display settings)
- Adds new section to /help/status-and-availability#statuses

Fixes #23492.

help/status-and-availability.md

@@ -62,7 +62,8 @@ and compose box. Status emoji and status messages are also shown on
 !!! tip ""
 
     You can also click on a user's profile picture or name on a message they
-    sent to view their status in their **user card**.
+    sent to view their status in their **user card**, or configure status text
+    to always be shown in the right sidebar.
 
 {tab|mobile}
 
@@ -75,6 +76,27 @@ and compose box. Status emoji and status messages are also shown on
 
 {end_tabs}
 
+### Configure how statuses are displayed
+
+You can choose whether or not status text is displayed in the right sidebar.
+With the compact option, only status emoji are shown.
+
+{start_tabs}
+
+{tab|desktop-web}
+
+{settings_tab|display-settings}
+
+1. Under **Advanced**, select **Compact** or **Show status and text** for the
+   user list style.
+
+!!! tip ""
+
+    You can always hover over a user's name in the right sidebar to view their
+    status message if they have one set.
+
+{end_tabs}
+
 ## Availability
 
 There are three availability states: