Replace type UserID with a structure

src/controllers/openid_controller.rs

@@ -341,7 +341,7 @@ pub async fn token(req: HttpRequest,
             // Generate id token
             let id_token = IdToken {
                 issuer: app_config.website_origin.to_string(),
-                subject_identifier: session.user,
+                subject_identifier: session.user.0,
                 audience: session.client.0.to_string(),
                 expiration_time: session.access_token_expire_at,
                 issued_at: time(),
@@ -499,7 +499,7 @@ async fn user_info(req: HttpRequest, token: Option<String>,
     HttpResponse::Ok()
         .json(OpenIDUserInfo {
             name: user.full_name(),
-            sub: user.uid,
+            sub: user.uid.0,
             given_name: user.first_name,
             family_name: user.last_name,
             preferred_username: user.username,