Initial commit: notification-elements-demo app

Interactive Angular 19 demo for @sda/notification-elements-ui with
6 sections: Bell & Feed, Notification Center, Inbox, Comments &
Threads, Mention Input, and Full-Featured layout. Includes mock
data, dark mode toggle, and real-time event log.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/webpack/lib/IgnoreWarningsPlugin.js

@@ -0,0 +1,36 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("../declarations/WebpackOptions").IgnoreWarningsNormalized} IgnoreWarningsNormalized */
+/** @typedef {import("./Compiler")} Compiler */
+
+class IgnoreWarningsPlugin {
+	/**
+	 * @param {IgnoreWarningsNormalized} ignoreWarnings conditions to ignore warnings
+	 */
+	constructor(ignoreWarnings) {
+		this._ignoreWarnings = ignoreWarnings;
+	}
+
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap("IgnoreWarningsPlugin", compilation => {
+			compilation.hooks.processWarnings.tap("IgnoreWarningsPlugin", warnings =>
+				warnings.filter(
+					warning =>
+						!this._ignoreWarnings.some(ignore => ignore(warning, compilation))
+				)
+			);
+		});
+	}
+}
+
+module.exports = IgnoreWarningsPlugin;