LibWeb: Add Support for the ARIA Element Properties

Element now supports getting and setting ARIA properties from
JS and HTML.

Userland/Libraries/LibWeb/HTML/HTMLOptionElement.cpp

@@ -7,6 +7,7 @@
 
 #include <AK/StringBuilder.h>
 #include <LibWeb/Bindings/Intrinsics.h>
+#include <LibWeb/DOM/ARIARoleNames.h>
 #include <LibWeb/DOM/Node.h>
 #include <LibWeb/DOM/Text.h>
 #include <LibWeb/HTML/HTMLOptGroupElement.h>
@@ -140,4 +141,11 @@ bool HTMLOptionElement::disabled() const
         || (parent() && is<HTMLOptGroupElement>(parent()) && static_cast<HTMLOptGroupElement const&>(*parent()).has_attribute(AttributeNames::disabled));
 }
 
+FlyString HTMLOptionElement::default_role() const
+{
+    // https://www.w3.org/TR/html-aria/#el-option
+    // TODO: Only an option element that is in a list of options or that represents a suggestion in a datalist should return option
+    return DOM::ARIARoleNames::option;
+}
+
 }