Create admin user credential for TH Backend

def create_backend_admin(admin_email, admin_pass)
  admin_exist = Admin.find_by(email: admin_email)
  if not admin_exist
    admin = Admin.create({ 
      email: admin_email, 
      password: admin_pass, 
      password_confirmation: admin_pass,
    })

    pp admin
  else
    p "Admin already exist"
  end
end