Revert "editor: Refactor cursor_offset_on_selection field in favor of VimModeSettings" (#44960)

Reverts zed-industries/zed#44889

Release Notes:
- N/A
9d4d37a514Ben Brandt committed on 12/16/2025, 8:50:27 AM· committed by GitHubparent81d8fb9
3 files changedLine totals unavailable