Move map to subdomain.

public/index.html

@@ -185,7 +185,7 @@
       <div class="row">
         <div class="col-12">
           <div class="embed-responsive embed-responsive-16by9 border rounded mb-5">
-            <iframe class="embed-responsive-item" src="https://minetest.kif.rocks/map/#!/map/0/9/-271/-100"></iframe>
+            <iframe class="embed-responsive-item" src="https://map.minetest.kif.rocks/#!/map/0/9/-271/-100"></iframe>
           </div>
         </div>
       </div>