macOS: non-native fullscreen doesn't behave well with multiple fs windows

[mitchellh]

Follow up to #2516

While fixing #2516 (reviewing #2901), I realized there is another edge case that isn't handled well: when non-native full screen is entered from multiple windows, exiting non-native fs can incorrectly reactivate the menu and possibly the dock, making still-fullscreen windows look bad.

Reproduction

Specific steps to reproduce:

1. Launch Ghostty with the config below.
2. Open a new window (Cmd+N), now there are two windows, call them window A and B
3. Fullscreen window A (Cmd+Enter)
4. Move to window B (Cmd+Tilde)
5. Fullscreen window B (Cmd+Enter)
6. Move to window A (Cmd+Tilde)
7. Exit fullscreen window A (Cmd+Enter)

Now notice that the dimensions for window B are messed up.

Config:

macos-non-native-fullscreen = true

Solution Thoughts

The solution here I think is to track globally (i.e. static) whether our NonNativeFullscreen implementation added the dock/menu presentation options and to only undo them on the final window.

cc @dzhlobo since you've found interest in this. 😄

[liby]

Unable to reproduce in 1.1.0