settings: Remove disconnection of date-picker pop-up on scroll.

Disconnection of pop-up of date-picker for birthday on scroll of
settings is prevented.
Fixes #24924

web/src/settings_account.js

@@ -273,6 +273,7 @@ export function initialize_custom_date_type_fields(element_id) {
         altInput: true,
         altFormat: "F j, Y",
         allowInput: true,
+        static: true,
     });
 
     $(element_id)