LibWeb: Add the search element

Author: https://github.com/Psychpsyo
Commit: f09ed59351
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2444
Reviewed-by: https://github.com/tcl3 ✅
Reviewed-by: https://github.com/trflynn89

Libraries/LibWeb/HTML/HTMLElement.cpp

@@ -775,6 +775,9 @@ Optional<ARIA::Role> HTMLElement::default_role() const
     // https://www.w3.org/TR/html-aria/#el-samp
     if (local_name() == TagNames::samp)
         return ARIA::Role::generic;
+    // https://www.w3.org/TR/html-aria/#el-search
+    if (local_name() == TagNames::search)
+        return ARIA::Role::search;
     // https://www.w3.org/TR/html-aria/#el-section
     if (local_name() == TagNames::section) {
         // TODO:  role=region if the section element has an accessible name