LibWeb: Implement HTMLTableSectionElement::deleteRow()

Author: https://github.com/IdanHo
Commit: cc2e08d9e9
Pull-request: https://github.com/SerenityOS/serenity/pull/13014
Reviewed-by: https://github.com/awesomekling ✅

Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.h

@@ -20,6 +20,7 @@ public:
 
     NonnullRefPtr<DOM::HTMLCollection> rows() const;
     DOM::ExceptionOr<NonnullRefPtr<HTMLTableRowElement>> insert_row(long index);
+    DOM::ExceptionOr<void> delete_row(long index);
 };
 
 }