[DrawablePainter] Fix drawable scaling (#1766)

[PrimoDev23]

Properly scales the canvas to match the composables size or uses the drawable size if none is set.

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[bentrengrove]

This is intentional, it is up to drawable implementations how they fill their bounds. By doing this we would be applying scale to every drawable which would not be good.

I'll close this and have a look at the issue for you and see if I can recommend an alternative