jackpope 0db83ce329 Add useModernStrictMode as dynamic flag on www (#28346) ...

## Summary

Preparing modern strict mode rollout with dynamic feature flag

## How did you test this change?

![Screenshot 2024-02-15 at 10 09
49 AM](https://github.com/facebook/react/assets/8965173/9e90efc2-3578-4e63-ae2c-63d4a4e194b3)

DiffTrain build for [ef72271c2d](https://github.com/facebook/react/commit/ef72271c2d1234c9d1e1358f8083021089a50faa)

2024-02-16 20:22:50 +00:00

..

babel-plugin-react-refresh

[Fresh] Update the list of built-in hooks (#27864)

2024-02-06 19:02:28 +00:00

facebook-www

Add useModernStrictMode as dynamic flag on www (#28346)

2024-02-16 20:22:50 +00:00