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/GraphHelpers.js

@@ -0,0 +1,38 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./AsyncDependenciesBlock")} AsyncDependenciesBlock */
+/** @typedef {import("./Chunk")} Chunk */
+/** @typedef {import("./ChunkGroup")} ChunkGroup */
+/** @typedef {import("./DependenciesBlock")} DependenciesBlock */
+/** @typedef {import("./Module")} Module */
+
+/**
+ * @param {ChunkGroup} chunkGroup the ChunkGroup to connect
+ * @param {Chunk} chunk chunk to tie to ChunkGroup
+ * @returns {void}
+ */
+const connectChunkGroupAndChunk = (chunkGroup, chunk) => {
+	if (chunkGroup.pushChunk(chunk)) {
+		chunk.addGroup(chunkGroup);
+	}
+};
+
+/**
+ * @param {ChunkGroup} parent parent ChunkGroup to connect
+ * @param {ChunkGroup} child child ChunkGroup to connect
+ * @returns {void}
+ */
+const connectChunkGroupParentAndChild = (parent, child) => {
+	if (parent.addChild(child)) {
+		child.addParent(parent);
+	}
+};
+
+module.exports.connectChunkGroupAndChunk = connectChunkGroupAndChunk;
+module.exports.connectChunkGroupParentAndChild =
+	connectChunkGroupParentAndChild;