Client Secrets OAuth authentication broken since v3

[Foggy2]

All usage of Client Secrets authentication now fails since v3 beta was released, with an unknown type error for PromptCodeReceiver.

This is due to Google deprecating the out-of-band authentication flow and removing the PromptCodeReceiver class from the API library back in 2022.

I have overhauled the Client Secrets authentication in #405 and included a fix for this as a part of that work. I have changed the code to now exclusively use the LocalServerCodeReceiver which requires an interactive web browser be available on the system running PSGSuite.

Am raising this for awareness until the fix is merged into main.