Fix crash when failing to load emoji picker (#14525)

Fixes #14523

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

@@ -315,7 +315,7 @@ class EmojiPickerDropdown extends React.PureComponent {
 
         this.setState({ loading: false });
       }).catch(() => {
-        this.setState({ loading: false });
+        this.setState({ loading: false, active: false });
       });
     }