feat: integrate toast notifications in settings and layout components

- Added ToastService for managing toast notifications.
- Replaced alert in settings component with toast notifications for success and error messages.
- Included ToastComponent in layout for displaying notifications.
- Created loading spinner component for better user experience.
- Implemented domain detail component with detailed views for certificates, requirements, and services.
- Added functionality to manage and display SSL certificates and their statuses.
- Introduced a registry manager class for handling Docker registry operations.

ui/src/app/app.routes.ts

@@ -57,9 +57,16 @@ export const routes: Routes = [
           import('./features/dns/dns.component').then((m) => m.DnsComponent),
       },
       {
-        path: 'ssl',
+        path: 'domains',
         loadComponent: () =>
-          import('./features/ssl/ssl.component').then((m) => m.SslComponent),
+          import('./features/domains/domains.component').then((m) => m.DomainsComponent),
+      },
+      {
+        path: 'domains/:domain',
+        loadComponent: () =>
+          import('./features/domains/domain-detail.component').then(
+            (m) => m.DomainDetailComponent
+          ),
       },
       {
         path: 'settings',