* feat(explorer): add experimental watchers
This commit introduces watchers to update the tree.
This behavior is introduced behind an "filesystem_watchers" option
which should prevent instabilities.
It will become the default at some point.
Co-authored-by: Alexander Courtis <alex@courtis.org>
- move trash.lua into actions
- move system-open from root file to actions
- move copypasta code from fs to actions
- add file_exists in utils
- add rename_loaded_buffers in utils (might need to move that in the
future).
