make appstatus work again for apps

src/nginxconfig.ejs

@@ -251,6 +251,9 @@ server {
         }
     <% }); %>
 
+        location = /appstatus.html {
+        }
+
         proxy_pass http://<%= ip %>:<%= port %>;
 <% } else if ( endpoint === 'redirect' ) { %>
         # redirect everything to the app. this is temporary because there is no way