Trust center access management - get rid of access token

Signed-off-by: Émile Ré <emile@getprobo.com>

pkg/coredata/custom_domain.go

@@ -308,6 +308,10 @@ LIMIT 1
 
 	customDomain, err := pgx.CollectExactlyOneRow(rows, pgx.RowToStructByName[CustomDomain])
 	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			return ErrResourceNotFound
+		}
+
 		return fmt.Errorf("cannot collect custom domain: %w", err)
 	}