Minor.06 Remove Legacy Animate Prop

BREAKING CHANGE: remove legacy host-element animate prop runtime support in @remix-run/component.

Use animation mixins instead:

• Old: <div animate={{ enter: true, exit: true, layout: true }} />
• New: <div mix={[animateEntrance(), animateExit(), animateLayout()]} />

This aligns animation behavior with the new mixin composition model.