LibWeb: Move passing of Web object prototypes out of constructors

Author: https://github.com/trflynn89
Commit: af75493883
Pull-request: https://github.com/SerenityOS/serenity/pull/16945
Reviewed-by: https://github.com/alimpfard

Userland/Libraries/LibWeb/CSS/CSSRuleList.h

@@ -66,6 +66,7 @@ public:
 private:
     explicit CSSRuleList(JS::Realm&);
 
+    virtual void initialize(JS::Realm&) override;
     virtual void visit_edges(Cell::Visitor&) override;
 
     Vector<CSSRule&> m_rules;