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/lodash/toPath.js

@@ -0,0 +1,33 @@
+var arrayMap = require('./_arrayMap'),
+    copyArray = require('./_copyArray'),
+    isArray = require('./isArray'),
+    isSymbol = require('./isSymbol'),
+    stringToPath = require('./_stringToPath'),
+    toKey = require('./_toKey'),
+    toString = require('./toString');
+
+/**
+ * Converts `value` to a property path array.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Util
+ * @param {*} value The value to convert.
+ * @returns {Array} Returns the new property path array.
+ * @example
+ *
+ * _.toPath('a.b.c');
+ * // => ['a', 'b', 'c']
+ *
+ * _.toPath('a[0].b.c');
+ * // => ['a', '0', 'b', 'c']
+ */
+function toPath(value) {
+  if (isArray(value)) {
+    return arrayMap(value, toKey);
+  }
+  return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
+}
+
+module.exports = toPath;