[Basic] `ref` as a prop and the elimination of `forwardRef`

**What cheatsheet is this about? (if applicable)**
Basic cheatsheet -> `forwardRef/createRef`


**What's your issue or idea?**

React 19 introduces `ref` as a prop, with the future goal of eliminating `forwardRef`. [Announcement](https://react.dev/blog/2024/12/05/react-19#ref-as-a-prop)

The ref pages should be updated to reflect this.
