title: Unlayer react-email-editor: react v17 peer dependency issue
body: <p>I was trying to install this package in my react v17 but I got a peer dependency issue.
  <a href="https://github.com/unlayer/react-email-editor" rel="nofollow noreferrer">https://github.com/unlayer/react-email-editor</a></p>
  <p>A few days later I noticed there was an update but it isnt merged to the master yet
  <a href="https://github.com/barnent1/react-email-editor/tree/UPGRADE_TO_REACT_V17" rel="nofollow noreferrer">https://github.com/barnent1/react-email-editor/tree/UPGRADE_TO_REACT_V17</a></p>
  <p>How to use this new package inside my project.</p>