vicious rewrite of the CSS to support the notifications toolbar, removing all height: 100%'s and letting the flexbox stuff calculate auto-height instead. may have slowed down the rendering, especially when the toolbar is visible

src/controllers/pages/MatrixChat.js

@@ -169,6 +169,9 @@ module.exports = {
                     page_type: this.PageTypes.RoomDirectory,
                 });
                 break;
+            case 'notifier_enabled':
+                this.forceUpdate();
+                break;
         }
     },