Throw layout, isWide, navbarUnder back into mapStateToProps.

This gets wide view, auto layout, and navbar-under-mobile working again.

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

@@ -54,6 +54,9 @@ const messages = defineMessages({
 const mapStateToProps = state => ({
   isComposing: state.getIn(['compose', 'is_composing']),
   hasComposingText: state.getIn(['compose', 'text']) !== '',
+  layout: state.getIn(['local_settings', 'layout']),
+  isWide: state.getIn(['local_settings', 'stretch']),
+  navbarUnder: state.getIn(['local_settings', 'navbar_under'])
 });
 
 const keyMap = {