Add note about root.render microtask scheduling #7717
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This PR adds documentation about the microtask scheduling behavior of
createRoot().render(), as requested in #7317 and confirmed by the React team in facebook/react#32811.The documentation clarifies that while rendering is synchronous once it starts, the
render()call itself is scheduled in a microtask, similar to howsetStateworks. This can be important when integrating with code that depends on precise effect timing (remix-run/react-router#12459)Fixes #7317