docs: add version 1.31.0 (#350)

Co-authored-by: Meier Lukas <[email protected]>

Author: manuel-rw

docs/management/search-engines/index.mdx

@@ -6,7 +6,7 @@ tags:
 ---
 
 import { jellyseerrIntegration } from '@site/docs/integrations/jellyseerr';
-import { WidgetIntegrations } from '../../../src/components/widgets/integrations';
+import { WidgetIntegrations } from '@site/src/components/widgets/integrations';
 import { overseerrIntegration } from '@site/docs/integrations/overseerr';
 
 # Search Engines

versioned_docs/version-1.31.0/advanced/_category_.json

@@ -0,0 +1,9 @@
+{
+  "label": "Advanced",
+  "collapsed": true,
+  "position": 4,
+  "link": {
+    "type": "generated-index",
+    "title": "Advanced Concepts or features"
+  }
+}

versioned_docs/version-1.31.0/advanced/command-line/_category_.json

@@ -0,0 +1,4 @@
+{
+  "collapsed": true,
+  "label": "Command line interface"
+}

versioned_docs/version-1.31.0/advanced/command-line/fix-usernames/img/screenshot-cli.png

@@ -0,0 +1,17 @@
+# Fix usernames
+
+:::info
+
+This guide requires that you understand [how to access the CLI](../).
+
+:::
+
+If you somehow get into a situation where you have users with usernames that contain uppercase characters and you are no longer able to log in, you can use the following command to fix the usernames.
+
+```bash
+homarr fix-usernames
+```
+
+This will convert all credential usernames to lowercase and update the database accordingly.
+
+![](./img/screenshot-cli.png)