feat(dns): Implement DNS management functionality

- Added DnsManager and DnsEntry classes to handle DNS entries.
- Introduced new interfaces for DNS entry requests and data structures.
- Updated Cloudly class to include DnsManager instance.
- Enhanced app state to manage DNS entries and actions for creating, updating, and deleting DNS records.
- Created UI components for DNS management, including forms for adding and editing DNS entries.
- Updated overview and services views to reflect DNS entries.
- Added validation and formatting methods for DNS entries.

ts_web/elements/cloudly-view-overview.ts

@@ -104,11 +104,11 @@ export class CloudlyViewOverview extends DeesElement {
       },
       {
         id: 'dns',
-        title: 'DNS Zones',
-        value: this.data.dns?.length || 0,
+        title: 'DNS Entries',
+        value: this.data.dnsEntries?.length || 0,
         type: 'number' as const,
         iconName: 'lucide:Globe',
-        description: 'Managed DNS zones'
+        description: 'Managed DNS records'
       },
       {
         id: 'databases',