[facebook/react] [Compiler Bug]: React Compiler does not compile module-level 'use memo' but compiles function-level 'use memo'

### ROOT CAUSE The React Compiler does not currently scan the file for module-level directives. It only processes function-level directives, causing the module-level directive to be ignored. This results in the compiler not applying optimizations to all functions in the module when the directive is placed at the top of the file. ### CODE FIX Modify the `babel-plugin-react-compiler` to scan the file for the module-level directive and use it to determine whether to apply the React compiler optimizations to every function in the module. 1. **Scan the file for the module-level directive**: - Add a step to the plugin that scans the file for the module-level directive (e.g., `// @module: react`). - Set a flag (`moduleReactEnabled`) if found. 2. **Use the module-level flag during function processing**: - During function transformation, check if the module-level flag is set and the function does not have a function-level directive. - Apply the React compiler optimizations if the module-level flag is enabled. Here's a conceptual code change (actual implementation may vary based on the plugin's structure): ```javascript // Inside the plugin's code, before processing functions const moduleReactEnabled = scanForModuleDirective(file.content); // Inside the function transformation if (moduleReactEnabled) { // Apply React compiler optimizations for functions without function-level directives transformFunctionWithReactCompiler(node); } ``` This change ensures that the module-level directive is recognized and applied to all functions in the module, resolving the issue.