message: Fixed trim selected text
diff: @@ -30,7 +30,7 @@ document.addEventListener('mouseup', evt => {
  // getSelection would reture the text before it disappears
  // delay to wait for selection get cleared
  setTimeout(() => {
  - let text = window.getSelection().toString()
  + let text = window.getSelection().toString().trim()
  if (!text) {
  // empty message
  message.send({msg: 'SELECTION', self: true})
  