[feature]: Views – manual sorting of group headings

Is there an existing issue for this?

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Summary

Add ability to manually rearrange (drag-n-drop) grouped work items in a View.

Why should this be worked on?

I have created a view that groups the list by labels, but I have found no way to rearrange the order of the labels. We use this view at our team meetings and need to go trough the label list in a particular order. The screenshot shows the labels in a collapsed state. I expected to be able to rearrange the order of the labels, but this is not possible. The current order of the label groups also seem arbitrary, they are not sorted alphanumerically, so ordering by renaming labels to start with a number does not work either.