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/fork-ts-checker-webpack-plugin/lib/utils/path/forwardSlash.d.ts

@@ -0,0 +1,6 @@
+/**
+ * Replaces backslashes with one forward slash
+ * @param input
+ */
+declare function forwardSlash(input: string): string;
+export default forwardSlash;

node_modules/fork-ts-checker-webpack-plugin/lib/utils/path/forwardSlash.js

@@ -0,0 +1,14 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const path_1 = __importDefault(require("path"));
+/**
+ * Replaces backslashes with one forward slash
+ * @param input
+ */
+function forwardSlash(input) {
+    return path_1.default.normalize(input).replace(/\\+/g, '/');
+}
+exports.default = forwardSlash;