Revert "gpui: Flash menu in menubar on macOS when action is triggered (#38588)" (#38880)

This reverts commit ed7bd5a8ed6cbda563c4e6f1acb66e13f545718b.

We noticed this PR causes the editor to hang if you hold down any of the
menu item actions like ctrl+z, ctrl+x, etc


Release Notes:

- Fixed macOS menu item actions hanging the editor when their key
combination is held down
a9fe18f4cbLukas Wirth committed on 9/25/2025, 1:36:19 PM· committed by GitHubparent3c5e683
7 files changedLine totals unavailable