chore: migrate authifier into codebase (#658)

Co-authored-by: izzy <me@insrt.uk>
Signed-off-by: Zomatree <me@zomatree.live>
Signed-off-by: izzy <me@insrt.uk>

crates/delta/src/routes/onboard/complete.rs

@@ -1,7 +1,6 @@
-use authifier::models::Session;
 use once_cell::sync::Lazy;
 use regex::Regex;
-use revolt_database::{Database, User};
+use revolt_database::{Database, User, Session};
 use revolt_models::v0;
 use revolt_result::{create_error, Result};