User Management - ADMIN

[Julie-Salazar]

📌 #4.1 - Schools Management Page (/admin/users/schools)

List of registered schools.
Ability to add/edit/remove schools.
📌 #4.2 - Users Management Page (/admin/users)

Show all users (teachers, students, admins).
Ability to change roles and permissions.
📌 #4.3 - Teams Management Page (/admin/users/teams)

Show all registered teams.
Edit and delete teams.