Add window states API #6852

Job	Run time
Pre-commit checks / Pre-commit Checks	1m 18s
Check towncrier / Towncrier Checks	31s
Package Toga (core) / Create Python Package	19s
Package Toga (cocoa) / Create Python Package	25s
Package Toga (demo) / Create Python Package	21s
Package Toga (android) / Create Python Package	25s
Package Toga (dummy) / Create Python Package	18s
Package Toga (gtk) / Create Python Package	24s
Package Toga (iOS) / Create Python Package	19s
Package Toga (textual) / Create Python Package	30s
Package Toga (toga) / Create Python Package	25s
Package Toga (web) / Create Python Package	21s
Package Toga (winforms) / Create Python Package	19s
Test core (macos-latest, 3.9)	44s
Test core (macos-latest, 3.10)	43s
Test core (macos-latest, 3.11)	40s
Test core (macos-latest, 3.12)	50s
Test core (macos-latest, 3.13)	1m 7s
Test core (ubuntu-latest, 3.9)	1m 1s
Test core (ubuntu-latest, 3.10)	55s
Test core (ubuntu-latest, 3.11)	46s
Test core (ubuntu-latest, 3.12)	1m 20s
Test core (ubuntu-latest, 3.13)	1m 8s
Test core (windows-latest, 3.9)	1m 29s
Test core (windows-latest, 3.10)	1m 39s
Test core (windows-latest, 3.11)	1m 34s
Test core (windows-latest, 3.12)	1m 44s
Test core (windows-latest, 3.13)	2m 49s
Coverage	34s
Testbed (macOS-x86_64)	9m 2s
Testbed (macOS-arm64)	7m 20s
Testbed (windows)	6m 52s
Testbed (linux-x11)	5m 6s
Testbed (linux-wayland)	5m 6s
Testbed (android)	9m 30s
Testbed (iOS)	10m 24s
Testbed (textual-linux)	52s
Testbed (textual-macOS)	52s
Testbed (textual-windows)	1m 56s
	1h 21m 58s

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