fix: add nginx dependency and documentation to Netdata module

- Add missing nginx dependency declaration
- Add trailing newline at end of file
- Document why contentSecurityPolicy is set to null

modules/netdata.nix

@@ -36,6 +36,8 @@ in
   };
 
   config = lib.mkIf cfg.enable {
+    myModules.nginx.enable = true;  # Ensure nginx is enabled
+
     services.netdata = {
       enable = true;
       config = {
@@ -49,7 +51,8 @@ in
     myModules.nginx.domains.${cfg.domain} = {
       port = cfg.port;
       internalOnly = true;
-      contentSecurityPolicy = null;
+      contentSecurityPolicy = null;  # Netdata dashboard has its own CSP requirements, cannot be overridden
     };
   };
+
 }