added access variable to exams soo we can distinguish private, public and confidential exams and also bugfixes and improvements

src/utils/permissions.ts

@@ -2,7 +2,6 @@ import { EntityWithRoles, Role } from "@/interfaces/entity";
 import { PermissionType } from "@/interfaces/permissions";
 import { User, Type, userTypes } from "@/interfaces/user";
 import { RolePermission } from "@/resources/entityPermissions";
-import axios from "axios";
 import { findBy, mapBy } from ".";
 import { isAdmin } from "./users";