Add split panes feature and fix alias matching

- Split Panes: Cmd+D (vertical) and Cmd+Shift+D (horizontal)
- Close panes with Cmd+W when multiple panes exist
- Fixed alias matching to work with command arguments
- Aliases now match first word only (e.g., 'gs status' works with gs=git)

Split panes allow multiple terminal sessions side-by-side in the same tab
This commit is contained in:
2026-01-31 23:27:54 +00:00
parent 7edf5d7186
commit b9570620da
4 changed files with 113 additions and 4 deletions