(Update) Test Email command

[PyR8zdl]

Changed Test Email command to use owner email set in env instead of using mysql query to pluck email using hardcoded default owner user ID.

This is needed incase a tracker decides to change owners. They can easily change the owner info in env file and test emails will just work.

[HDVinnie]

Its considered bad practice to make a direct call to the .env file. You should instead call the other.php config which access's the .env var.

    /*
    |--------------------------------------------------------------------------
    | Site email
    |--------------------------------------------------------------------------
    |
    | Email address to send emails
    |
    */

    'email' => env('DEFAULT_OWNER_EMAIL', '[email protected]'),