🔧(frontend) load fresh content from index.html on every request

Prevent caching the index.html file which should load fresh content on
every request, based on @manuhabitela suggestion.

src/frontend/default.conf

@@ -4,16 +4,22 @@ server {
 
   root /usr/share/nginx/html;
 
-  # Serve static files
+  # Serve static files with caching
+  location ~* \.(css|js|json|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+      expires 30d;
+      add_header Cache-Control "public, max-age=2592000";
+  }
+
+  # Serve other requests without caching
   location / {
       try_files $uri $uri/ /index.html;
+
+      # Add no-cache headers
+      add_header Cache-Control "no-cache, no-store, must-revalidate";
+      add_header Pragma "no-cache";  # HTTP 1.0 header for backward compatibility
+      add_header Expires 0;
   }
 
   # Optionally, handle 404 errors by redirecting to index.html
   error_page 404 =200 /index.html;
-
-  location ~* \.(css|js|json|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
-      expires 30d;
-      add_header Cache-Control "public, max-age=2592000";
-  }
 }