[DONE] Read-only guest users?

[mdubakov]

Released

CHANGELOG: Feb 9 / Guests (free read-only users), Code syntax highlights, 15 fixed bugs

Guests (free read-only users) Guests are no longer experimental and you can safely use them. Just invite a new user and select Guest option. Guests are free, but they only can see things and do nothing else. [Screenshot 2022-02-09 at 1.41.41 PM] You can also change existing user to Guest. Navigate to user and change the user role: [Screenshot 2022-02-09 at 2.04.09 PM] Code syntax highlights Code block in rich edit field got some love, now you can select language to h…