FIX remove web ui config in values.yaml

[washanhanzi]

What was changed

1. remove web ui config in values.yaml
2. remove web config volume in web-deployment.yaml
3. remove web-config config map
4. remove line 280 since the install bash didn't configure web ui auth
5. update the document for web ui configuration with env variable

Why?

393

Checklist

1. Closes #393

2. How was this tested: manually, 100% craft by hand. since the repo didn't provide any testing tool.

3. Any docs updates needed? already updated with the PR.

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[samm-git]

+1, spent ~hour trying to understand why OID does not work when finally found that config map is not mounted to any volume/file.

[joshbranham]

Can we get this merged? Also just spent a ton of time on auth that wasn't necessary.

[washanhanzi]

@tsurdilo

[kamelj]

I can't understand why this was not merged; we all suffered when we tried to change the web values, and nothing was affected!

[washanhanzi]

@robholland

[washanhanzi]

All done. By the way, is there any test I can run? The PR has been open for a really long time, and I haven't touched the temporal charts since then. I'm not as confident as I was when I submitted the PR.

[robholland]

Nothing automated. We internally use the helm charts to install the base app, but we don't modify the UI so wouldn't pick up on problems. I'll do a manual test before I merge it though.