Nextcloud introduces collaborative rich text editor

Nextcloud designer here, also working on Nextcloud Text. :)

Big thanks to ProseMirror https://prosemirror.net and tiptap https://tiptap.scrumpy.io which we use as a base for the app!

And of course as always with Nextcloud, the Text app is open source and everyone is welcome to give feedback and contribute: https://github.com/nextcloud/text