Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/workbox-build/build/index.d.ts

@@ -0,0 +1,10 @@
+import { copyWorkboxLibraries } from './lib/copy-workbox-libraries';
+import { getModuleURL } from './lib/cdn-utils';
+import { generateSW } from './generate-sw';
+import { getManifest } from './get-manifest';
+import { injectManifest } from './inject-manifest';
+/**
+ * @module workbox-build
+ */
+export { copyWorkboxLibraries, generateSW, getManifest, getModuleURL, injectManifest, };
+export * from './types';