feat(gui): add full computing unit tab

[gracecluvohio]

What changes were proposed in this PR?

This PR adds the rest of the features to create a new computing unit tab, including creating and deleting computing units and viewing computing unit details. It is part 3 of 3 of PR #3691.

Demonstration:

Creating a new computing unit:

Screen.Recording.2026-03-29.at.2.50.27.PM.mov

Deleting a computing unit:

Screen.Recording.2026-03-29.at.2.53.56.PM.mov

Viewing computing unit details:

Untitled.mov

Any related issues, documentation, discussions?

Closes #3690

How was this PR tested?

Tested locally

Was this PR authored or co-authored using generative AI tooling?

No

[chenlica]

@gracecluvohio Let's use "Compute" instead of "Computing Units" on the navigation bar.

[chenlica]

@kunwp1 Please review it.

[kunwp1]

@gracecluvohio Since this is part 3 of the computing unit tab, can it be reviewed independently, or should I wait for the first two PRs to be merged?

[gracecluvohio]

@gracecluvohio Since this is part 3 of the computing unit tab, can it be reviewed independently, or should I wait for the first two PRs to be merged?

You should probably wait for the first two PRs to be merged. Each PR adds commits on top of the others, so there will be less files to review (and less conflicts) if earlier PRs are reviewed and merged before later ones.

[kunwp1]

Thanks! Then I will wait until the two PRs are merged.