Closes #19816

Release Notes:

- Improved `ctrl-k` (`editor::CutToEndOfLine`) behavior when used at the
end of lines
- Add option to make `editor::CutToEndOfLine` not gobble newlines.
   ```json
   {
     "context": "Editor",
"bindings": { "ctrl-k": ["editor::CutToEndOfLine", { "stop_at_newlines":
true }] }
   },
   ```

---------

Co-authored-by: Peter Tripp <peter@zed.dev>