fixed stuff

como_bin/src/graphql.rs

@@ -35,7 +35,7 @@ impl MutationRoot {
 
         let user_id = user_service.add_user(username, password).await?;
 
-        Ok(user_id.into())
+        Ok(user_id)
     }
 }
 

como_bin/src/services/users_service.rs

@@ -1,4 +1,4 @@
-use std::sync::Arc;
+
 
 use anyhow::anyhow;
 use argon2::{password_hash::SaltString, Argon2, PasswordHash, PasswordHasher, PasswordVerifier};