LibJS+LibWeb: Wrap raw JS::Cell*/& fields in GCPtr/NonnullGCPtr

Author: https://github.com/mattco98
Commit: 7c0c1c8f49
Pull-request: https://github.com/SerenityOS/serenity/pull/17743
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibWeb/HTML/Scripting/Script.h

@@ -35,7 +35,7 @@ private:
 
     AK::URL m_base_url;
     DeprecatedString m_filename;
-    EnvironmentSettingsObject& m_settings_object;
+    JS::NonnullGCPtr<EnvironmentSettingsObject> m_settings_object;
 };
 
 }