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/npm-package-json-lint/dist/src/utils/getFileList.d.ts

@@ -0,0 +1,8 @@
+/**
+ * Generates a list of files to lint based on a list of provided patterns
+ *
+ * @param {Array<string>} patterns An array of patterns
+ * @param {string}        cwd      The current working directory.
+ * @returns {Array<string>} An array a files to lint.
+ */
+export declare const getFileList: (patterns: any, cwd: any) => any[];

node_modules/npm-package-json-lint/dist/src/utils/getIgnorer.d.ts

@@ -0,0 +1,9 @@
+import { Ignore } from 'ignore';
+/**
+ * Generates ignorer based on ignore file content.
+ *
+ * @param cwd Current work directory.
+ * @param ignorePath Ignore path.
+ * @returns An instance of an Ignorer
+ */
+export declare const getIgnorer: (cwd: string, ignorePath: string) => Ignore;

node_modules/npm-package-json-lint/dist/src/utils/getNameError.d.ts

@@ -0,0 +1,7 @@
+/**
+ * Gets the error message indicating why the name is invalid.
+ *
+ * @param   {object} results Results from validate-npm-package-name
+ * @returns {string}         Error/warning message
+ */
+export declare const getNameError: (results: any) => any;