Closes [#20574](https://github.com/zed-industries/zed/issues/20574) Release Notes: - Replaced editor action editor::AcceptPartialEditPrediction with editor::AcceptNextLineEditPrediction and editor::AcceptNextWordEditPrediction Tested manually on windows, attaching screen cap. https://github.com/user-attachments/assets/fea04499-fd16-4b7d-a6aa-3661bb85cf4f Updated existing test for accepting word prediction in copilot - it is already marked as flaky, not sure what to do about it and I'm not really confident creating new one without a working example. Added migration of keymaps and new defaults for windows, linux, macos in defaults and in cursor. This should alleviate [#21645](https://github.com/zed-industries/zed/issues/21645) I used some work done in stale PR https://github.com/zed-industries/zed/pull/25274, hopefully this one makes it through! --------- Co-authored-by: Agus Zubiaga <agus@zed.dev>