Notification when personal access token has expired/is no longer valid

[techncl]

📝 Provide a description of the new feature

If the token used has expired/is no longer valid, it doesn't alert you; you have to check yourself. It would be nice if:

1. There was some sort of alert to tell you this.
2. Maybe the "G" could go red also?

➕ Additional Information

No response

[setchy]

For (1) we do have token error handling that should be showing the error screen... Will need to recreate an expired token scenario and retest

[setchy]

As promised, overnight I performed a recreation to test

• Gitify v5.17.0 on macOS
• GitHub Cloud
• PAT with 24hr expiration and the minimum 3 scopes (read:user, repo, notifications)
• Result was as expected, BAD CREDENTIALS error page displayed
  

[techncl]

Oh, I see. Maybe I didn't see the notification. Thank you for your quick response and for testing this.

[setchy]

No problems.

I like the suggestion of a red Gitify icon when things go sideways, I'll look into that