Fixed a few regressions related to the recent command refactoring.
- New: Added support for hierarchical/nested tags (#2572 by Vaidotas Šimkus)
- Fixed: Fix filename when exporting notebook as Markdown (#3473)
- Fixed: Fixed alarms on macOS
- Fixed: Improve Markdown rendering in CodeMirror, in particular for math expressions (#3448) (#3440 by @CalebJohn)
- Fixed: Crash when applying tags to multiple notes from within another tag (#3481)
- Fixed: Fixed regression when moving note to notebook from menu (#3482)