New option: Hide shoutbox

src/components/settings_modal/tabs/general_tab.js

@@ -50,6 +50,7 @@ const GeneralTab = {
       return this.$store.state.instance.background &&
         !this.$store.state.users.currentUser.background_image
     },
+    shout () { return this.$store.state.shout.channel.state === 'joined' }, 
     ...SharedComputedObject()
   }
 }

src/components/settings_modal/tabs/general_tab.vue

@@ -21,6 +21,11 @@
             {{ $t('settings.hide_wallpaper') }}
           </BooleanSetting>
         </li>
+        <li v-if="shout">
+          <BooleanSetting path="hideShoutbox">
+            {{ $t('settings.hide_shoutbox') }} {{ $t('shoutbox.title') }}
+          </BooleanSetting>
+        </li>
       </ul>
     </div>
     <div class="setting-item">