[macOS] Verify: reports carried over from window_manager #80

These were reported against window_manager 0.5.x, whose platform code is gone: window_manager 0.6.0 is rebuilt on nativeapi. None of them has been checked against nativeapi yet. Each needs a reproduction with nativeapi (a Flutter app on the Window API), then a fix or a note that it no longer happens. Tick them off here as they're checked.

Related: libnativeapi/nativeapi#59 (app-level hide on macOS).

• Buttons not clickable when placed at top of window with TitleBarStyle.hidden on macOS Tahoe (26.0) leanflutter/window_manager#565: buttons at the top of the window aren't clickable with a hidden title bar on macOS 26 Tahoe
• macOS fullscreen blocking content leanflutter/window_manager#171: a bar blocks the top of the content in native full screen
• fullscreen + alwaysOnTop property is not working in mac os leanflutter/window_manager#351: full screen together with always-on-top shows the menu bar and Dock
• [macOS]: calling windowManager.hide() shows black screen if the app is shown in full screen leanflutter/window_manager#379: hide() while in full screen leaves a black screen
• [MACOS] After windowManager.setResizable(reset) is called, no matter reset is true or false, the window size cannot be changed. leanflutter/window_manager#462: after setResizable(), the window can no longer be resized at all
• [MacOS] MACOS 14及以后的版本，窗口hide了两次之后，无法再次打开 leanflutter/window_manager#501: on macOS 14+, the window can't be reopened after hiding it twice
• App crashes when calling windowManager.hide() with hotkey_manager leanflutter/window_manager#543: crash when hiding the window from a global hotkey callback (with hotkey_manager)
• [macOS] windowManager.setSize(...) freezed app leanflutter/window_manager#541: setSize() hangs forever inside an integration test
• [Bug] BackgroundColor not work in flutter > 3.22.3 leanflutter/window_manager#481: background colour always black since Flutter 3.22.3 (reported on macOS)
• Freezing after hot restart leanflutter/window_manager#360: app freezes after a hot restart when it starts in full screen (macOS, also reported on Windows 11)