AK+Everywhere: Store JSON object keys as String

Author: https://github.com/trflynn89
Commit: e591636419
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3631
Reviewed-by: https://github.com/awesomekling ✅

Services/WebDriver/Session.cpp

@@ -47,7 +47,7 @@ ErrorOr<NonnullRefPtr<Session>> Session::create(NonnullRefPtr<Client> client, Js
     // -> Otherwise
     else {
         // Set a property of capabilities with name "proxy" and a value that is a new JSON Object.
-        capabilities.set("proxy", JsonObject {});
+        capabilities.set("proxy"sv, JsonObject {});
     }
 
     // FIXME: 4. If capabilites has a property named "acceptInsecureCerts", set the endpoint node's accept insecure TLS flag