move templates into subdirs

templates/mumble-web/nginx.conf.j2

@@ -53,11 +53,11 @@ server {
 {% endif %}
 
   location / {
-    root /var/www/mumble-web/dist/;
+    root {{ mumble_web_dist_dir }};
   }
 
   location /mumble {
-    proxy_pass http://127.0.0.1:{{ mumble_web_websockify_port }};
+    proxy_pass http://localhost:{{ mumble_web_websockify_port }};
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection $connection_upgrade;