Bring a very small number of hypershift jobs back to blocking, improve jobtier display for jobs table

[dgoodwin]

• Demote all hypershift jobs to candidate, promote a very small subset to standard
• Revert "Drop hypershift from main views for 4.20 and 4.21"
• Improve Variants view in the Jobs table to match what was recently done in Tests table
• Refactor to use common functions for variant display logic

If you switch to the Variants view on the jobs table, JobTier is now first in the list and colored red/green as we did in the Tests by Variant table recently.

[openshift-ci-robot]

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[openshift-ci-robot]

Scheduling required tests:
/test e2e

[stbenjam]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dgoodwin, stbenjam

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 6132ec9 and 2 for PR HEAD 9c47446 in total

[stbenjam]

/override ci/prow/e2e

CI issues today, no point in holding up on this change

[openshift-ci]

@stbenjam: Overrode contexts on behalf of stbenjam: ci/prow/e2e

In response to this:

/override ci/prow/e2e

CI issues today, no point in holding up on this change

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[openshift-ci]

@dgoodwin: all tests passed!

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