Enable background drawables outside of ReactViewGroup #43723
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Summary:
ReactViewGroup hosts border drawing and clipping drawable as a background drawable, sometimes placing it in a layer with another existing drawable.
This roughly tries to replicate that, but with view managers assuming some level of ownership of any background drawables set on the underlying view.
We replicate same rough behavior for ReactViewGroup before, but now ViewManagers could add these background drawables to arbitrary view-managers. Enabling e.g. box-shadow in more places.
I am not 100% on some of the details here around LayerDrawable invalidation.
Changelog: [Internal]
Differential Revision: D55565114