gpui_linux: Release X11 client state before close callback (#63089)

Release Notes:

- Fixed double-lease panic on X11 when reacting to WM_DELETE_WINDOW
event.
d9ad6aff67Jakub Konka committed on 8/22/2026, 8:58:12 PM· committed by GitHubparent7eec892
1 file changedLine totals unavailable