move the check for non-animatable properties from the animation building
phase to the application of the animation's transition instead, in such
a way we can check it against the keyframes of the transition's timeline
in order to only provide warnings for properties which are being
animated, thus not providing any warning for non-animatable properties
being applied to elements via the style function
this change has the benfit just mentioned above but it comes with two
drawbacks:
- the warning handling is not done in the building time so it is a bit
inconsistent with other type of validations (such as the unsupported css
properties one for example)
- before the warning was being applied only when the animation's data
was being parsed, so it happed only once but now since it is applied
when the animation is actually being prepared to be played, it happens
each time the animation runs
resolves#46602
PR Close#46666
a4ec1096a1