message: fix focus on new editorState as it didn't have focus so broke when alt tab
diff: @@ -330,8 +330,9 @@ export default class MessageComposerInput extends React.Component {
  }
  return editorState;
  } else {
  - // ...or create a new one.
  - return Plain.deserialize('', { defaultBlock: DEFAULT_NODE });
  + // ...or create a new one. and explicitly focus it otherwise tab in-out issues
  + const base = Plain.deserialize('', { defaultBlock: DEFAULT_NODE });
  + return base.change().focus().value;
  }
  }
  