message: fix crash on load for emoji picker
diff: @@ -8,6 +8,10 @@ import {insertInsideComposer, onComposerShown} from '../helpers/tweetdeckHelpers
  export function setupEmojiPicker() {
  function unmount() {
  + if (!document.querySelector('#emojiButton')) {
  + return;
  + }
  +
  unmountComponentAtNode(document.querySelector('#emojiButton')!);
  }
  