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/lib/get-string-details.js

@@ -0,0 +1,19 @@
+"use strict";
+/*
+  Copyright 2018 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getStringDetails = void 0;
+const get_string_hash_1 = require("./get-string-hash");
+function getStringDetails(url, str) {
+    return {
+        file: url,
+        hash: (0, get_string_hash_1.getStringHash)(str),
+        size: str.length,
+    };
+}
+exports.getStringDetails = getStringDetails;