List Templates

curl https://www.unosend.co/api/v1/templates \
  -H "Authorization: Bearer un_xxxxxxxxxx"

{
  "data": [
    {
      "id": "tpl_abc123",
      "name": "Welcome Email",
      "subject": "Welcome to {{company_name}}, {{first_name}}!",
      "created_at": "2024-01-15T10:30:00.000Z"
    },
    {
      "id": "tpl_def456",
      "name": "Password Reset",
      "subject": "Reset your password",
      "created_at": "2024-01-14T08:00:00.000Z"
    }
  ]
}