LibWeb: Implement reset algorithm for HTMLSelectElement

Author: https://github.com/srikavin
Commit: b55c9f36dc
Pull-request: https://github.com/SerenityOS/serenity/pull/16631

Userland/Libraries/LibWeb/HTML/HTMLSelectElement.h

@@ -56,6 +56,8 @@ public:
     // https://html.spec.whatwg.org/multipage/forms.html#category-label
     virtual bool is_labelable() const override { return true; }
 
+    virtual void reset_algorithm() override;
+
     DeprecatedString const& type() const;
 
 private: