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/webpack/lib/WebpackOptionsDefaulter.js

@@ -0,0 +1,26 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { applyWebpackOptionsDefaults } = require("./config/defaults");
+const { getNormalizedWebpackOptions } = require("./config/normalization");
+
+/** @typedef {import("./config/normalization").WebpackOptions} WebpackOptions */
+/** @typedef {import("./config/normalization").WebpackOptionsNormalized} WebpackOptionsNormalized */
+
+class WebpackOptionsDefaulter {
+	/**
+	 * @param {WebpackOptions} options webpack options
+	 * @returns {WebpackOptionsNormalized} normalized webpack options
+	 */
+	process(options) {
+		const normalizedOptions = getNormalizedWebpackOptions(options);
+		applyWebpackOptionsDefaults(normalizedOptions);
+		return normalizedOptions;
+	}
+}
+
+module.exports = WebpackOptionsDefaulter;