nixos/nextcloud-notify_push: automatically install notify_push nextcloud app (#451501)

nixos/modules/services/web-apps/nextcloud-notify_push.nix

@@ -159,8 +159,7 @@ in
       "::1" = [ cfgN.hostName ];
     };
 
-    services = lib.mkMerge [
-      {
+    services = {
       nginx.virtualHosts.${cfgN.hostName}.locations."^~ /push/" = {
         proxyPass = "http://unix:${cfg.socketPath}";
         proxyWebsockets = true;
@@ -172,14 +171,17 @@ in
             proxy_buffering off;
           '';
       };
-      }
-
-      (lib.mkIf cfg.bendDomainToLocalhost {
-        nextcloud.settings.trusted_proxies = [
+      nextcloud = {
+        extraApps = {
+          inherit (config.services.nextcloud.package.packages.apps)
+            notify_push
+            ;
+        };
+        settings.trusted_proxies = lib.mkIf cfg.bendDomainToLocalhost [
           "127.0.0.1"
           "::1"
         ];
-      })
-    ];
+      };
+    };
   };
 }