Summary:
History wasn't being replaced in some cases, which was
causing a bug where trying to leave a tutorial fork via the
browser's back button would navigate back to the trunk, and
trigger forking again. This effectively made it impossible to
leave a tutorial.
Also adds support for specifying custom CSS classes for
tutorial Markdown images.
Test Plan: Browser test.
Reviewers: JakubSerafin
Reviewed By: JakubSerafin
Differential Revision: https://phab.getgrist.com/D3866
Summary:
Documents can now be flagged as tutorials, which causes them to display
Markdown-formatted slides from a special GristDocTutorial table. Tutorial
documents are forked on open, and remember the last slide a user was on.
They can be restarted too, which prepares a new fork of the tutorial.
Test Plan: Browser tests.
Reviewers: jarek
Reviewed By: jarek
Differential Revision: https://phab.getgrist.com/D3813
