Add `Window` scene, `openWindow` action, `dismissWindow` action, fix window close handling, and add multi-window support to `WindowGroup`#284

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kaascevich wants to merge 25 commits intostackotter:mainfrom

kaascevich:window-scene

Commits on Dec 24, 2025

initial attempt at closing windows using `DismissAction` (not successful)
Kaleb A. Ascevich
committed

Commits on Dec 28, 2025

"fix" `DismissAction` for windows (it already worked, I just wasn't using it properly in the example)
kaascevich
committed
add dedicated `dismissWindow` action
kaascevich
committed
Merge branch 'stackotter:main' into window-dismissal
kaascevich
authored

Commits on Dec 29, 2025

Commits on Dec 31, 2025

Commits on Jan 2, 2026