AK+Everywhere: Store JSON strings as String

Author: https://github.com/trflynn89
Commit: bc54c0cdfb
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3631
Reviewed-by: https://github.com/awesomekling ✅

Services/WebDriver/Session.cpp

@@ -221,7 +221,7 @@ ErrorOr<NonnullRefPtr<Core::LocalServer>> Session::create_server(NonnullRefPtr<S
             return;
         }
 
-        auto window_handle = MUST(String::from_byte_string(maybe_window_handle.value().as_string()));
+        auto const& window_handle = maybe_window_handle.value().as_string();
 
         web_content_connection->on_close = [this, window_handle]() {
             dbgln_if(WEBDRIVER_DEBUG, "Window {} was closed remotely.", window_handle);