useImperativeHandle examples

1. Base without useImperativeHandle
2. Base with useImperativeHandle
3. Advanced
4. Deps are not correct - wrong
5. Deps are not correct - correct
6. Deps are empty - wrong
7. Deps are empty - correct
8. Ref modification - wrong
9. Ref modification - correct
10. Before init - wrong
11. Before init - correct
12. State animation sync - wrong
13. State animation sync - correct