LibWeb: Make select element use option's label, not text content

Author: https://github.com/Psychpsyo
Commit: 8f11dfc08a
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3130
Reviewed-by: https://github.com/AtkinsSJ ✅

Libraries/LibWeb/HTML/HTMLOptionElement.cpp

@@ -114,6 +114,13 @@ String HTMLOptionElement::label() const
 void HTMLOptionElement::set_label(String const& label)
 {
     MUST(set_attribute(HTML::AttributeNames::label, label));
+
+    // NOTE: This option's select element may need to show different contents now.
+    if (selected()) {
+        if (auto select_element = first_ancestor_of_type<HTMLSelectElement>()) {
+            select_element->update_inner_text_element({});
+        }
+    }
 }
 
 // https://html.spec.whatwg.org/multipage/form-elements.html#dom-option-text