UI: Allow sorting workflows by more criteria

[rbreeze]

Summary

Allow for users to sort the UI workflow list by duration, name (alphabetically), and finish time.

Motivation

I wanted to quickly find a workflow with a long duration in the UI, but realized there was no way to sort them.

Proposal

For the UI, something as simple as an up/down arrow on each column's header that a user can click to sort by that column. The color of the active column's header could be different to indicate which sorting criteria is currently selected.

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Message from the maintainers:

If you wish to see this enhancement implemented please add a 👍 reaction to this issue! We often sort issues this way to know what to prioritize.

[herebebeasties]

I would also love to be able to sort cron workflows by "next run", so you can easily see upcoming runs and when they will be.

[agilgur5]

Was just discussing sorting on Slack and wanted to jot down some notes here.

Currently, sorting is pretty limited due to the k8s API and etcd -- see #4546 (comment), #3565 (comment), #2926, which all link to kubernetes/kubernetes#80602.

#12736 should allow for lots more sorting options to be performed efficiently.