Add window states API #6937

Job	Run time
Pre-commit checks / Pre-commit Checks	45s
Check towncrier / Towncrier Checks	31s
Package Toga (android) / Create Python Package	22s
Package Toga (cocoa) / Create Python Package	15s
Package Toga (core) / Create Python Package	24s
Package Toga (demo) / Create Python Package	16s
Package Toga (dummy) / Create Python Package	18s
Package Toga (gtk) / Create Python Package	27s
Package Toga (iOS) / Create Python Package	18s
Package Toga (textual) / Create Python Package	24s
Package Toga (toga) / Create Python Package	26s
Package Toga (web) / Create Python Package	23s
Package Toga (winforms) / Create Python Package	19s
Test core (macos-latest, 3.9)	51s
Test core (macos-latest, 3.10)	41s
Test core (macos-latest, 3.11)	50s
Test core (macos-latest, 3.12)	45s
Test core (macos-latest, 3.13)	1m 16s
Test core (ubuntu-latest, 3.9)	49s
Test core (ubuntu-latest, 3.10)	49s
Test core (ubuntu-latest, 3.11)	1m 2s
Test core (ubuntu-latest, 3.12)	58s
Test core (ubuntu-latest, 3.13)	1m 14s
Test core (windows-latest, 3.9)	1m 48s
Test core (windows-latest, 3.10)	1m 31s
Test core (windows-latest, 3.11)	1m 50s
Test core (windows-latest, 3.12)	1m 45s
Test core (windows-latest, 3.13)	2m 6s
Coverage	33s
Testbed (macOS-x86_64)	9m 18s
Testbed (macOS-arm64)	7m 0s
Testbed (windows)	6m 57s
Testbed (linux-x11)	5m 7s
Testbed (linux-wayland)	5m 52s
Testbed (android)	8m 52s
Testbed (iOS)	6m 45s
Testbed (textual-linux)	50s
Testbed (textual-macOS)	1m 12s
Testbed (textual-windows)	1m 52s
	1h 17m 41s

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