added cluster-admins to administration tab

[rsun19]

Closes: RHOAIENG-7659

Description

Users in the group cluster-admins but not in odh-admins showed up as users in the administration tab. I added this group so that they would instead show as admin

This fix will also show cluster-admin users with no previous activity in the tab.

How Has This Been Tested?

1. Comment out the one-liner
2. Add a cluster-admin to your cluster, but do not add them to the odh-admins group.
3. Create a notebook server (Applications -> Enabled -> Jupyter -> Notebooks Server) logged in with the credentials of the NEW USER you just created.
4. Go to Applications -> Enabled -> Jupyter -> Administration. They should show up as a user since it just had recent activity.
5. Repeat step 2.
6. Uncomment the one-line fix
7. After reloading, you will be able to see that the users in steps 1 and 5 show up as 'admins', even though 5 had no previous activity.

Test Impact

N/A... Small fix, and code changes are unlikely to break this functionality since it is a one-liner.

Request review criteria:

Self checklist (all need to be checked):

• The developer has manually tested the changes and verified that the changes work
• Commits have been squashed into descriptive, self-contained units of work (e.g. 'WIP' and 'Implements feedback' style messages have been removed)
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has added tests or explained why testing cannot be added (unit or cypress tests for related changes)

If you have UI changes:

• Included any necessary screenshots or gifs if it was a UI change.
• Included tags to the UX team if it was a UI/UX change (find relevant UX in the SMEs section).

After the PR is posted & before it merges:

• The developer has tested their solution on a cluster by using the image produced by the PR to main

[christianvogt]

/lgtm
/approve

Tested on Robert's cluster logged in as cubeadmin3.
All users referenced by the cluster-admin group now show up regardless of having last activity or not. Furthermore they show up as an Admin

Before:

After:

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: christianvogt

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