Improve error message when new auth token is required due to 30-day timeout

[eba99]

Describe the bug
Error message after auth token timeout is unclear: "Exception: Cannot get new token: {"error":"invalid_grant","error_description":"Token is not active"}"

To Reproduce
Steps to reproduce the behavior:

1. Open Terminal
2. Enter command: >comotion authenticate -o organisation name
3. Log in to organisation's dash through comoauth
4. Wait 30 days (or edit token timeout settings)
5. Once authentication is complete, open terminal again and enter command: >comotion -o organisation name dash download "select 1"
6. See error message

Expected behavior
More clear error message, e.g. 'Your authentication token has expired. Obtain a new token with the following command: >comotion authenticate -o organisation name"

Desktop (please complete the following information):

• OS: Windows
• Browser: Microsoft Edge

[timalive]

Thanks @eba99