Consolidate hooks in usePseudoStates and useStyleTransition

[ixf]

This reduces RSD's memory overhead in React Native. Measured with https://github.com/ixf/rsd-bench - in this bench it drops retained memory by ~15%

• use less useState's. It has a measurable impact since it's used in everywhere
• remove unnecessary useRef and useEffect - transitionMetadata doesn't need to be set in a separate useEffect. It can be bundled into the state because it's used in the other useEffect which only reacts to the changes in state anyway