Extension views never finish loading, 'bad credentials' when setting current user

[joyceerhl]

• Extension version: v2021.10.7747
• VSCode Version: 1.61.0-insider
• OS: Windows 10

Steps to Reproduce:

1. Install GHPRI Insider extension
2. Open a PR
3. 🐛 View never finishes loading. I see a 'Bad credentials' message in the dev log but am never prompted to reauth:
   

[alexr00]

I'm not able to repro. If you're still seeing this please let me know!

[alexr00]

I hit this and fixed it, but it's going to be tough to verify. Here's how, in case someone has some expired credentials lying around somewhere:

1. First, we need to see if you have some bad credentials.
   a. Do not open VS Code!
   a. Have an old install of VS Code or VS Code insiders that you've used this extension with before but haven't opened in a while.
   a. Navigate to where your extensions are installed and make sure you're either on stable GHPRI or just delete the extension all together.
   a. Open your old install of VS Code or VS Code insiders.
   a. Install GHPRI stable.
   a. If you see an error notification about "Bad credentials" then it is possible for you to verify this issue. If not, thank you for trying!
2. Switch to the pre-release version of this extension and reload.
3. Verify that you get prompted to sign in.
4. Verify that PRs load in the PRs view and that you don't get a "Bad credentials" message.

[joyceerhl]

@alexr00 it seems nobody can verify this (myself included 😅) Optimistically marking as verified since I reported the original issue and have not been able to repro it since.