feat: Implement admin user management features

- Added adminCreateUser endpoint and corresponding DTO for creating users.
- Implemented deleteUser and resetPassword functionalities for admin users.
- Introduced updateEmail functionality for admin users.
- Updated UsersService to handle user creation, deletion, password reset, and email updates.
- Modified UsersController to include new admin routes with appropriate role checks.
- Refactored frontend navigation to link to user management under profile.
- Created new profile tabs for user management and database management.
- Developed AnvandareClient component for user management, including user creation, deletion, role changes, and password resets.
- Added DatabsTab for managing product listings and merging duplicates.
- Enhanced MinProfilTab for user profile management with form handling.

frontend/app/admin/users/page.tsx

@@ -1,30 +1,6 @@
-import { auth } from '../../../auth';
 import { redirect } from 'next/navigation';
-import { fetchJson } from '../../../lib/api';
-import UserAdminClient from './UserAdminClient';
 
-type User = {
-  id: number;
-  username: string;
-  email: string;
-  firstName: string | null;
-  lastName: string | null;
-  role: string;
-  createdAt: string;
-};
-
-export default async function AdminUsersPage() {
-  const session = await auth();
-  if (!session || (session.user as any)?.role !== 'admin') {
-    redirect('/');
-  }
-
-  const users = await fetchJson<User[]>('/api/users');
-
-  return (
-    <main className="p-6 max-w-4xl mx-auto">
-      <h1 className="text-2xl font-bold mb-6">Användarhantering</h1>
-      <UserAdminClient users={users} currentUserId={session.user.id} />
-    </main>
-  );
+export default function AdminUsersPage() {
+  redirect('/profil?tab=anvandare');
 }
+