Auto merge of #25603 - pylbrecht:raqote, r=jdm

Update CanvasRenderingContext2D fillStyle and strokeStyle only when required

So far fill and stroke style updates have been sent to the canvas paint
thread by `SetFillStyle()` and `SetStrokeStyle()`. This resulted in
fill/stroke style updates not being considered by the canvas paint
thread between the latest call of `SetFillStyle()`/`SetStrokeStyle()` and
the drawing operation (e.g. fill or stroke).

This issue is solved by making `SetFillStyle()` and `SetStrokeStyle()`
update the local canvas state and propagating the state to the canvas
paint thread along with the drawing operations that require it.

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- [x] These changes fix part of #25331

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