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/@babel/runtime/helpers/esm/toArray.js

@@ -0,0 +1,8 @@
+import arrayWithHoles from "./arrayWithHoles.js";
+import iterableToArray from "./iterableToArray.js";
+import unsupportedIterableToArray from "./unsupportedIterableToArray.js";
+import nonIterableRest from "./nonIterableRest.js";
+function _toArray(r) {
+  return arrayWithHoles(r) || iterableToArray(r) || unsupportedIterableToArray(r) || nonIterableRest();
+}
+export { _toArray as default };