feat(dees-simple-appdash,dees-simple-login,dees-terminal): Revamp UI: dashboard & login styling, standardize icons to Lucide, and add terminal background/config

ts_web/elements/00group-simple/dees-simple-appdash/dees-simple-appdash.demo.ts

@@ -266,17 +266,17 @@ export const demoFunc = () => html`
       .viewTabs=${[
         {
           name: 'Dashboard',
-          iconName: 'home',
+          iconName: 'lucide:home',
           element: DemoViewDashboard,
         },
         {
           name: 'Analytics',
-          iconName: 'lineChart',
+          iconName: 'lucide:lineChart',
           element: DemoViewAnalytics,
         },
         {
           name: 'Settings',
-          iconName: 'settings',
+          iconName: 'lucide:settings',
           element: DemoViewSettings,
         }
       ] as IView[]}