fix: remove 16 non-existent apps from showcase, correct count 93→76

Removed apps that have no deploy template in code:
- Subsonic, Vikunja, OpenProject, Plane, HedgeDoc
- Yacht, Authelia, Keycloak, OpenVPN, Bitwarden
- Forgejo, GitLab, Prometheus, Netdata, Kibana, OpenHAB

Also fixed name: 'Vintage Radio' → 'Vintage Stereo' (matches actual template)
Corrected all '93+' references to '76' across all pages.
Deployed to live dashcaddy.net via cPanel API.

src/app/features/page.tsx

@@ -40,11 +40,11 @@ export default function FeaturesPage() {
       id: 'app-deployment',
       title: 'App Deployment',
       description:
-        'Deploy from a library of 93+ pre-configured Docker templates with one click. Automatic configuration, smart defaults, and service discovery that auto-detects running containers and lets you adopt them instantly. From zero to live in seconds.',
+        'Deploy from a library of 76 pre-configured Docker templates with one click. Automatic configuration, smart defaults, and service discovery that auto-detects running containers and lets you adopt them instantly. From zero to live in seconds.',
       icon: '🚀',
       features: [
         { icon: '⚡', label: 'One-click deployment' },
-        { icon: '📦', label: '93+ app templates' },
+        { icon: '📦', label: '76 app templates' },
         { icon: '⚙️', label: 'Automatic configuration' },
         { icon: '🔍', label: 'Service Discovery & auto-adopt' },
         { icon: '🧙', label: 'Smart Defaults Wizard' },
@@ -350,7 +350,7 @@ export default function FeaturesPage() {
               </div>
               <ul className="space-y-3">
                 {[
-                  '93+ one-click app templates',
+                  '76 one-click app templates',
                   'Automatic SSL certificates',
                   'Technitium DNS automation',
                   'Reverse proxy + Caddyfile builder',