Fix DOM canvas resize synchronization

[waynemwashuma]

Objective

Fix DOM window resize handling so canvas-backed windows stay synchronized with their rendered size and emit resize events from scheduled window state updates instead of DOM resize events on the canvas.

Solution

• Remove the old setUpWindowEvents listener because resize events are not a reliable canvas event source for DOM canvas size changes.
• Add syncWindowSize during window registration to initialize both the canvas backing size and styled size from the Window component.
• Add a resizeWindow system to check registered canvases and update their Window component when the DOM size changes.
• Update WindowResize to receive explicit width and height values instead of reading them from a UIEvent.
• Update window resize commands to apply style dimensions, read the final bounding rect, sync the canvas backing buffer, and update the Window resource consistently.

Showcase

Before

Resize events depended on manually dispatched canvas events, and WindowResize extracted size from the event target.

After

Resize state is detected by the DOM window system and emitted with explicit dimensions.

Migration guide

No breaking changes

Checklist

• I have updated the documentation accordingly.
• I have added tests to cover my changes.