Keymap changes for `editor::JoinLines` (#14136)

- Linux (default) add ctrl-shift-j
- Linux (default) remove ctrl-j
  - Conflicted with: `"ctrl-j": "workspace::ToggleBottomDock",`
- MacOS (sublime) add cmd-shift-j
de78eb44b1Peter Tripp committed on 7/11/2024, 3:14:25 PM· committed by GitHubparentc071e19
2 files changedLine totals unavailable