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/CommentCompilationWarning.js

@@ -0,0 +1,32 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const WebpackError = require("./WebpackError");
+const makeSerializable = require("./util/makeSerializable");
+
+/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
+
+class CommentCompilationWarning extends WebpackError {
+	/**
+	 * @param {string} message warning message
+	 * @param {DependencyLocation} loc affected lines of code
+	 */
+	constructor(message, loc) {
+		super(message);
+
+		this.name = "CommentCompilationWarning";
+
+		this.loc = loc;
+	}
+}
+
+makeSerializable(
+	CommentCompilationWarning,
+	"webpack/lib/CommentCompilationWarning"
+);
+
+module.exports = CommentCompilationWarning;