Improve getting started column (#7676)

* Adjust footer of getting started column

- Improved style
- Moved hotkeys, about this instance and logout to footer
- Removed FAQ, User Guide, Apps links
- Use hamburger icon for the column

* Add edit profile action button to profile and more to dropdown

* Add "Trending now" to getting started column

* Add preferences/security links on mobile layout

app/javascript/mastodon/features/domain_blocks/index.js

@@ -28,7 +28,7 @@ export default class Blocks extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    domains: ImmutablePropTypes.list,
+    domains: ImmutablePropTypes.orderedSet,
     intl: PropTypes.object.isRequired,
   };