[FIX] website: fix trigger of website_url_chosen

Before this commit, website_url_chosen was triggered when the dropdown
of the input closed instead of when an item was selected in the
list. This caused the following issue: you lost focus in the input
every time the list closed while typing.

After this commit, website_url_chosen is only triggered when an item
is selected in the results list of a urlpicker input.

Part of #62971

task-2312878

X-original-commit: a4cf182211de21970d5261713c5cbae3e609cfb1

addons/website/static/src/js/utils.js

@@ -88,8 +88,10 @@ function autocompleteWithPages(self, $input) {
                 });
             }
         },
-        close: function () {
+        select: function (ev, ui) {
+            ev.target.value = ui.item.value;
             self.trigger_up('website_url_chosen');
+            ev.preventDefault();
         },
     });
 }