Reload the notebook when the file changes on disk

[ibash]

Description

Neovim is my editor. When I edit a marimo notebook file and save it in vim, I would like marimo to reload with my changes.

Note that I am not editing external modules, but the marimo notebook directly.

It's not necessary to auto-run cells. I'm happy to run them manually.

Note that I think listening to file changes on disk is better than a direct neovim integration, because listening to file changes would allow integration with other tools.

Related to #998, however only module reloading was implemented.

Suggested solution

Watch file changes to the notebook file on disk. When a change is detected update cells and mark which cells are outdated.

Alternative

No response

Additional context

No response