Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- app/controllers/settings/notifications_controller.rb
- app/javascript/packs/public.js
- app/views/settings/preferences/show.html.haml
- app/views/stream_entries/_simple_status.html.haml
- config/locales/simple_form.en.yml
- config/locales/simple_form.pl.yml
- config/navigation.rb
- config/routes.rb

app/javascript/mastodon/features/compose/components/compose_form.js

@@ -34,10 +34,6 @@ const messages = defineMessages({
 export default @injectIntl
 class ComposeForm extends ImmutablePureComponent {
 
-  setRef = c => {
-    this.composeForm = c;
-  };
-
   static contextTypes = {
     router: PropTypes.object,
   };
@@ -120,7 +116,9 @@ class ComposeForm extends ImmutablePureComponent {
   }
 
   handleFocus = () => {
-    this.composeForm.scrollIntoView();
+    if (this.composeForm) {
+      this.composeForm.scrollIntoView();
+    }
   }
 
   componentDidUpdate (prevProps) {
@@ -164,6 +162,10 @@ class ComposeForm extends ImmutablePureComponent {
     this.spoilerText = c;
   }
 
+  setRef = c => {
+    this.composeForm = c;
+  };
+
   handleEmojiPick = (data) => {
     const { text }     = this.props;
     const position     = this.autosuggestTextarea.textarea.selectionStart;

app/javascript/mastodon/features/compose/components/privacy_dropdown.js

@@ -129,7 +129,7 @@ class PrivacyDropdownMenu extends React.PureComponent {
           // It should not be transformed when mounting because the resulting
           // size will be used to determine the coordinate of the menu by
           // react-overlays
-          <div className={`privacy-dropdown__dropdown ${placement}`} style={{ ...style, opacity: opacity, transform: mounted ? `scale(${scaleX}, ${scaleY})` : null }} role='listbox' ref={this.setRef}>
+          <div className={`privacy-dropdown__dropdown ${placement}`} style={{ ...style, opacity: opacity, transform: mounted ? `scale(${scaleX}, ${scaleY})` : null, zIndex: 2 }} role='listbox' ref={this.setRef}>
             {items.map(item => (
               <div role='option' tabIndex='0' key={item.value} data-index={item.value} onKeyDown={this.handleKeyDown} onClick={this.handleClick} className={classNames('privacy-dropdown__option', { active: item.value === value })} aria-selected={item.value === value} ref={item.value === value ? this.setFocusRef : null}>
                 <div className='privacy-dropdown__option__icon'>