* helix-view/view: impl method to remove document from jumps
* helix-view/editor: impl close_document
* helix-view/editor: remove close_buffer argument from `close`
According to archseer, this was never implemented or used properly. Now
that we have a proper "buffer close" function, we can get rid of this.
* helix-term/commands: implement buffer-close (bc, bclose)
This behaves the same as Kakoune's `delete-buffer` / `db` command:
* With 3 files opened by the user with `:o ab`, `:o cd`, and `:o ef`:
* `buffer-close` once closes `ef` and switches to `cd`
* `buffer-close` again closes `cd` and switches to `ab`
* `buffer-close` again closes `ab` and switches to a scratch buffer
* With 3 files opened from the command line with `hx -- ab cd ef`:
* `buffer-close` once closes `ab` and switches to `cd`
* `buffer-close` again closes `cd` and switches to `ef`
* `buffer-close` again closes `ef` and switches to a scratch buffer
* With 1 file opened (`ab`):
* `buffer-close` once closes `ab` and switches to a scratch buffer
* `buffer-close` again closes the scratch buffer and switches to a new
scratch buffer
* helix-term/commands: implement buffer-close! (bclose!, bc!)
Namely, if you have a document open in multiple splits, all the splits
will be closed at the same time, leaving only splits without that
document focused (or a scratch buffer if they were all focused on that
buffer).
* helix-view/tree: reset focus if Tree is empty
* reverse the dependency between helix-tui and helix-view by moving a fiew types to view
* fix tests
* clippy and format fixes
Co-authored-by: Keith Simmons <keithsim@microsoft.com>