sign_in_with_oauth does not return code veriffier

[daic0r]

sign_in_with_oauth ought to return the code verifier, since that is needed in the callback form /authorize to do the code exchange.
Right now it only returns the URL to initiate the PKCE flow, but once the callback route is invoked, one cannot proceed because one cannot do the code exchange due to the missing code verifier.

[zoedsoupe]

some signing in flows are broken, i'll be looking to it from next week

the last month i was focused on let supabase-ex with minimal stability so i can fix and develop more missing features for the adjacent libraries, like this one that is the most used for the elixir community, although is probably the most broken also :confusing:

sorry for the delay, i'm doing my best but i'm alone on this developing to take care of, for now, 4 libraries and also my "official" work and other projects.