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/tailwindcss/lib/util/createUtilityPlugin.js

@@ -0,0 +1,53 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "default", {
+    enumerable: true,
+    get: function() {
+        return createUtilityPlugin;
+    }
+});
+const _transformThemeValue = /*#__PURE__*/ _interop_require_default(require("./transformThemeValue"));
+function _interop_require_default(obj) {
+    return obj && obj.__esModule ? obj : {
+        default: obj
+    };
+}
+function createUtilityPlugin(themeKey, utilityVariations = [
+    [
+        themeKey,
+        [
+            themeKey
+        ]
+    ]
+], { filterDefault =false , ...options } = {}) {
+    let transformValue = (0, _transformThemeValue.default)(themeKey);
+    return function({ matchUtilities , theme  }) {
+        for (let utilityVariation of utilityVariations){
+            let group = Array.isArray(utilityVariation[0]) ? utilityVariation : [
+                utilityVariation
+            ];
+            var _theme;
+            matchUtilities(group.reduce((obj, [classPrefix, properties])=>{
+                return Object.assign(obj, {
+                    [classPrefix]: (value)=>{
+                        return properties.reduce((obj, name)=>{
+                            if (Array.isArray(name)) {
+                                return Object.assign(obj, {
+                                    [name[0]]: name[1]
+                                });
+                            }
+                            return Object.assign(obj, {
+                                [name]: transformValue(value)
+                            });
+                        }, {});
+                    }
+                });
+            }, {}), {
+                ...options,
+                values: filterDefault ? Object.fromEntries(Object.entries((_theme = theme(themeKey)) !== null && _theme !== void 0 ? _theme : {}).filter(([modifier])=>modifier !== "DEFAULT")) : theme(themeKey)
+            });
+        }
+    };
+}