Switch custom useEditor hook for the official one provided by Tiptap

[thales-fukuda]

With the release of Tiptap v2.5, the useEditor hook now includes an option to render the editor on the first render. This makes the custom hook used here obsolete, which was included to solve the same issue and is currently outdated compared to the one provided by Tiptap.

Switching back to the official hook and providing an option to opt out could also fix #532 and #737.