👔 Added methods on LocalStorageService for isAdmin attribute

src/app/services/localstorage.service.ts

@@ -5,6 +5,7 @@ import { Injectable } from '@angular/core';
 })
 export class LocalStorageService {
   private readonly AUTH_TOKEN_KEY = 'auth_token';
+  private readonly IS_ADMIN_KEY = 'isAdmin';
 
   constructor() {}
 
@@ -19,4 +20,16 @@ export class LocalStorageService {
   removeToken(): void {
     localStorage.removeItem(this.AUTH_TOKEN_KEY);
   }
+
+  setIsAdmin(isAdmin: boolean): void {
+    localStorage.setItem(this.IS_ADMIN_KEY, isAdmin.toString());
+  }
+
+  getIsAdmin(): string | null {
+    return localStorage.getItem(this.IS_ADMIN_KEY);
+  }
+
+  removeIsAdmin(): void {
+    localStorage.removeItem(this.IS_ADMIN_KEY);
+  }
 }