updated nginx conf for cms

nginx.conf

@@ -1,10 +1,24 @@
 server {
     listen 80;
-    server_name localhost;
+    server_name localhost; # This is fine as Traefik handles the external domain
     root /usr/share/nginx/html;
 
+    # Specific location for the Decap CMS admin panel
+    # This ensures that any request to /admin/ or /admin/* (that isn't an existing file/dir)
+    # serves /admin/index.html, allowing Decap's client-side router to work.
+    location /admin/ {
+        try_files $uri $uri/ /admin/index.html;
+    }
+
+    # General location block for the rest of your site
     location / {
-        index index.html;
-        try_files $uri $uri/ =404;
+        index index.html; # Serves index.html from directories
+        try_files $uri $uri/ =404; # Returns 404 if file/directory not found.
+                                   # If your main site is also an SPA, change to: try_files $uri $uri/ /index.html;
+    }
+
+    # Optional: Deny access to hidden files like .htaccess or .git
+    location ~ /\. {
+        deny all;
     }
 }