Change datalist updates to input events.

Using a keyup event caused hitting the down key to select an item to
refresh the list and move your cursor back to the input field.

meshview/templates/search_form.html

@@ -13,7 +13,7 @@
         size="100"
         list="node_options"
         value="{{raw_node_id}}"
-        hx-trigger="keyup delay:100ms"
+        hx-trigger="input delay:100ms"
         hx-get="/node_match"
         hx-target="#node_options"
     />