fix(elements/applauncher): add eco app launcher components, wifi/sound/battery menus, demos and new eco-screensaver; replace dees-screensaver (breaking API change)

ts_web/elements/eco-screensaver/eco-screensaver.demo.ts

@@ -0,0 +1,18 @@
+import { html } from '@design.estate/dees-element';
+import { EcoScreensaver } from './eco-screensaver.js';
+
+export const demo = () => {
+  // Clean up any existing instance first
+  if (EcoScreensaver.instance) {
+    EcoScreensaver.instance.remove();
+    EcoScreensaver.instance = null;
+  }
+
+  return html`
+    <eco-screensaver .delay=${2000}></eco-screensaver>
+    <div style="padding: 24px; color: #888;">
+      Screensaver activates after 2 seconds of inactivity.<br>
+      Move mouse or press keys to reset timer.
+    </div>
+  `;
+};