Revert "fs: Replace MacWatcher with notify::FsEventWatcher" (#47799)

Reverts zed-industries/zed#47322. I'm going to remerge this tomorrow
after releases so we get a full week in nightly to catch any bugs
87d41c1d97Anthony Eid committed on 1/27/2026, 8:27:53 PM· committed by GitHubparentb1f9ca9
10 files changedLine totals unavailable