we should not have a mapView as root, add a div

because if we do a mapView of this view from the parent, it won't work
as the parent is swapped from underneath that binding and
it can't replace it

src/utils/TemplateView.js

@@ -238,6 +238,8 @@ class TemplateBuilder {
                 const newNode = renderNode(node);
                 if (node.parentNode) {
                     node.parentNode.replaceChild(newNode, node);
+                } else {
+                    console.warn("Could not update parent of node binding");
                 }
                 node = newNode;
             }
@@ -342,4 +344,4 @@ for (const [ns, tags] of Object.entries(TAG_NAMES)) {
             return this.elNS(ns, tag, attributes, children);
         };
     }
-}
+}