feat(preferences): extension modals into extension panes (#683)

* feat(preferences): show inline extensions in extensions pane

* wip

* wip

* refactor: convert ComponentView to React component

* refactor: convert ComponentView to React component

* chore: fix merge conflicts

* feat: don't show features whose `area` is "room", update modal items' icons in Preferences menu

* chore: fix TS error

* feat: don't show 2FA Manager in modal-based component

* feat: remove `ExtendedDataReloadComplete` event, since Extensions Manger is being removed from the app

* chore: avoid hardcoded values in svg image, optimize `if` condition

* chore: remove remnant comment

* fix: fix typescript errors

Co-authored-by: vardanhakobyan <vardan_live@live.com>

app/assets/javascripts/components/AccountMenu/index.tsx

@@ -105,7 +105,7 @@ const AccountMenu: FunctionComponent<Props> = observer(
     };
 
     return (
-      <div className="sn-component">
+      <div className='sn-component'>
         <div
           className={`sn-menu-border sn-account-menu sn-dropdown ${
             shouldAnimateCloseMenu