Closes #23334

This does not follow the exact way that windows are resized in vim.
Normally the command is `ctrl-w >` however this PR uses just `ctrl->`.
This is because I could not find a good way to read in a count like `10
ctrl-w ctrl->`. This is not really a problem since `ctrl->` can be held
down, which, in my opinion, speeds up resizing. I think this is a good
compromise since it improves usability; however, I am concerned that
this is not intuitive. I am looking forward to feedback.

Release Notes:

- Added the following commands 
  - vim::ResizeLeftDock
  - vim::ResizeRightDock
  - vim::ResizeBottomDock
- Added keybinds
  - `ctrl->` for widening left dock
  - `ctrl-<` for narrowing left dock