Support .animate syntax for MArray mutators

[Nikhil-42]

Description

Remove explicit Animation construction in mutators or move the animation code to a method decorator to support .animate syntax.

[Nikhil-42]

Here is an example of a typical refactor:

1. Remove animation parameters from method signature.
2. Return a self-reference (for method chaining).
3. Extract mutation logic from animation function.
4. Remove animations, references to self.__scene, internal functions, etc.