fix: prevent asset conflicts between React and Grid.js versions

Add coexistence checks to all enqueue methods to prevent loading
both React and Grid.js assets simultaneously.

Changes:
- ReactAdmin.php: Only enqueue React assets when ?react=1
- Init.php: Skip Grid.js when React active on admin pages
- Form.php, Coupon.php, Access.php: Restore classic assets when ?react=0
- Customer.php, Product.php, License.php: Add coexistence checks

Now the toggle between Classic and React versions works correctly.

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

node_modules/@wordpress/components/build-module/text/component.js

@@ -0,0 +1,40 @@
+import { createElement } from "react";
+/**
+ * Internal dependencies
+ */
+
+import { contextConnect } from '../context';
+import { View } from '../view';
+import useText from './hook';
+/**
+ * @param props
+ * @param forwardedRef
+ */
+function UnconnectedText(props, forwardedRef) {
+  const textProps = useText(props);
+  return createElement(View, {
+    as: "span",
+    ...textProps,
+    ref: forwardedRef
+  });
+}
+
+/**
+ * `Text` is a core component that renders text in the library, using the
+ * library's typography system.
+ *
+ * `Text` can be used to render any text-content, like an HTML `p` or `span`.
+ *
+ * @example
+ *
+ * ```jsx
+ * import { __experimentalText as Text } from `@wordpress/components`;
+ *
+ * function Example() {
+ * 	return <Text>Code is Poetry</Text>;
+ * }
+ * ```
+ */
+export const Text = contextConnect(UnconnectedText, 'Text');
+export default Text;
+//# sourceMappingURL=component.js.map