GIF Playback in edit mode

[Brin-o]

Describe your feature request During my writing I often insert GIFs displaying what im writing about. I seldom use the preview mode for reading, yet that is the only mode that supports gif playback.

Due to how whitespacing and indenting gets rendered in the preview mode (as discussed https://github.com/glushchenko/fsnotes/issues/1256) i prefer reading things in edit mode, however as of now gifs do not playback inside of edit mode.

Additional context I am talking about the macOS version.