LibWeb: Set select element text when an option is initially selected

Previously, a select element's text would initially be empty if the
`selected` property was set on one of its options.

Userland/Libraries/LibWeb/HTML/HTMLSelectElement.cpp

@@ -323,9 +323,9 @@ void HTMLSelectElement::form_associated_element_was_inserted()
             auto options = list_of_options();
             if (options.size() > 0) {
                 options.at(0)->set_selected(true);
-                update_inner_text_element();
             }
         }
+        update_inner_text_element();
     });
 }