Tweaked gitignore

gitignore removed all composer and npm files, so automated builds would fail

conf/site/node_modules/webpack/lib/AsyncDependencyToInitialChunkError.js

@@ -0,0 +1,31 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Sean Larkin @thelarkinn
+*/
+"use strict";
+
+const WebpackError = require("./WebpackError");
+
+/** @typedef {import("./Module")} Module */
+
+class AsyncDependencyToInitialChunkError extends WebpackError {
+	/**
+	 * Creates an instance of AsyncDependencyToInitialChunkError.
+	 * @param {string} chunkName Name of Chunk
+	 * @param {Module} module module tied to dependency
+	 * @param {TODO} loc location of dependency
+	 */
+	constructor(chunkName, module, loc) {
+		super(
+			`It's not allowed to load an initial chunk on demand. The chunk name "${chunkName}" is already used by an entrypoint.`
+		);
+
+		this.name = "AsyncDependencyToInitialChunkError";
+		this.module = module;
+		this.loc = loc;
+
+		Error.captureStackTrace(this, this.constructor);
+	}
+}
+
+module.exports = AsyncDependencyToInitialChunkError;