New role.

src/api/userRoles.ts

 export enum Roles {
+  visitor = 'visitor',
   senior = 'senior',
   admin = 'admin',
   operator = 'operator',

src/components/AuthUser/AuthContext.tsx

+import { Roles } from 'api/userRoles';
 import { createContext } from 'react';
 
 export type AuthData = {
@@ -6,7 +7,7 @@ export type AuthData = {
 };
 
 export const AuthContext = createContext<AuthData>({
-  role: '',
+  role: Roles.visitor,
   setRole: () => {
     // Do nothing
   },