fix vim repeat (#8513)

Release Notes:

- vim: Fixed `.` when multiple windows are open
([#7446](https://github.com/zed-industries/zed/issues/7446)).
- vim: Fixed switching to normal mode after `J`, `<` or `>` in visual
mode ([#4439](https://github.com/zed-industries/zed/issues/4439))
- vim: Added `ctrl-t` and `ctrl-d` for indent/outdent in insert mode.

- Fixed indent/outdent/join lines appearing to work in read-only buffers
([#8423](https://github.com/zed-industries/zed/issues/8423))
- Fixed indent with an empty selection when the cursor was in column 0