[postcss-plugin] Fix importSources

Author: javascripter

packages/react-strict-dom/postcss/plugin.js

@@ -29,10 +29,11 @@ const plugin = ({
     babelConfig,
     include,
     exclude,
-    useCSSLayers: true,
+    useCSSLayers: false,
     importSources: [
       '@stylexjs/stylex',
-      [{ from: 'react-strict-dom', as: 'css' }]
+      'stylex',
+      { from: 'react-strict-dom', as: 'css' }
     ]
   });
 };