Reorganize monorepo structure

* Move all config files to './configs'
* Simplify './scripts' folder.

packages/react-native-web-examples/pages/dimensions/index.js

@@ -0,0 +1,29 @@
+import React from 'react';
+import { Dimensions, Text } from 'react-native';
+import Example from '../../shared/example';
+
+export default function DimensionsPage() {
+  const [screenDims, setScreen] = React.useState(Dimensions.get('screen'));
+  const [windowDims, setWindow] = React.useState(Dimensions.get('window'));
+
+  React.useEffect(() => {
+    const handleChange = ({ screen, window: win }) => {
+      setScreen(screen);
+      setWindow(win);
+    };
+
+    const subscription = Dimensions.addEventListener('change', handleChange);
+    return () => {
+      subscription.remove();
+    };
+  }, [setScreen, setWindow]);
+
+  return (
+    <Example title="Dimensions">
+      <Text style={{ marginVertical: '1em' }} suppressHydrationWarnings={true}>
+        window: {JSON.stringify(windowDims, null, 2)}
+      </Text>
+      <Text suppressHydrationWarnings={true}>screen: {JSON.stringify(screenDims, null, 2)}</Text>
+    </Example>
+  );
+}