message: Add comments for missing types in MessageActionBar
diff: @@ -90,7 +90,7 @@ const OptionsButton: React.FC<IOptionsButtonProps> =
  interface IReactButtonProps {
  mxEvent: MatrixEvent;
  - reactions: any;
  + reactions: any; // TODO: types
  onFocusChange: (menuDisplayed: boolean) => void;
  }
  @@ -128,7 +128,7 @@ const ReactButton: React.FC<IReactButtonProps> = ({ mxEvent, reactions, onFocusC
  interface IMessageActionBarProps {
  mxEvent: MatrixEvent;
  // The Relations model from the JS SDK for reactions to `mxEvent`
  - reactions?: any;
  + reactions?: any; // TODO: types
  permalinkCreator?: RoomPermalinkCreator;
  getTile: () => any; // TODO: FIXME, haven't figured out what the return type is here
  getReplyThread?: () => ReplyThread;
  