Additional toolbar

[abarnto]

Hi!
Thanks for this amazing project ❤️
Today I was syncing my fork and I ended up implementing this:

1770577456580.mp4

What drove me into this was essentially the UX on mobile:

• "Focus mode" is a very useful mode, and personally I'd expect to access it quickly. At the moment it's quite difficult to activate: it needs 2 clicks + 1 scroll on desktop / another click on mobile (even if the sub-menu is buggy and closes right after it's expanded)
• Formatting text on mobile requires going through several keyboard switches to insert proper symbols, since one cannot leverage keyboard shortcuts available on desktop (which aren't working in 0.26.1, but restored in the fork)
• Adding headings is somewhat related to the previous point

By creating a dedicated toolbar, all these aspects can be addressed easily.
I realize this implementation is opinionated, that's why I'm simply showing it off. If you think this can be embedded in the project, I'd be very glad to open a PR: in that case any suggestions for improvements are welcomed.