buffer: Keep the shorter language setting names for the common operation (#43915)

cc
https://github.com/zed-industries/zed/pull/43888#issuecomment-3597265087

Release Notes:

- N/A *or* Added/Fixed/Improved ...
628c52a96aLukas Wirth committed on 12/1/2025, 5:55:33 PM· committed by GitHubparent4655366
54 files changedLine totals unavailable