message: fix(selection): ignore right click
diff: @@ -123,7 +123,9 @@ merge(
  * 2. Event target is not a Saladict exposed element.
  */
  const validMouseup$$ = merge(
  - fromEvent<MouseEvent>(window, 'mouseup', { capture: true }),
  + fromEvent<MouseEvent>(window, 'mouseup', { capture: true }).pipe(
  + filter(e => e.button === 0)
  + ),
  fromEvent<TouchEvent>(window, 'touchend', { capture: true }).pipe(
  map(e => e.changedTouches[0])
  ),
  