Save slimsidebar settings to db on change

src-ui/src/app/data/paperless-uisettings.ts

@@ -37,6 +37,7 @@ export const SETTINGS_KEYS = {
   NOTIFICATIONS_CONSUMER_SUPPRESS_ON_DASHBOARD:
     'general-settings:notifications:consumer-suppress-on-dashboard',
   COMMENTS_ENABLED: 'general-settings:comments-enabled',
+  SLIM_SIDEBAR: 'general-settings:slim-sidebar',
 }
 
 export const SETTINGS: PaperlessUiSetting[] = [
@@ -55,6 +56,11 @@ export const SETTINGS: PaperlessUiSetting[] = [
     type: 'boolean',
     default: false,
   },
+  {
+    key: SETTINGS_KEYS.SLIM_SIDEBAR,
+    type: 'boolean',
+    default: false,
+  },
   {
     key: SETTINGS_KEYS.DOCUMENT_LIST_SIZE,
     type: 'number',