v4: General "label" for multi radio/checkbox

[grizzm0]

Orphan "labels" next to multi-choice checkbox/radio are not aligned the same as form-control-label. Adding form-control-label also adds a padding-top which should not be there. See docs example or screenshot.

The orphan label has class col-sm-2 with padding-left .9375rem while form-control-label has a padding-left of .75rem.

[patrickhlauke]

popping in the linked screenshot here

[Holt59]

There is already a pending pull-request for this: #18389

And another related issue: #17211

[patrickhlauke]

The label itself (which should actually be a <legend> in this case) is fixed here #19277 (but that fix exposes a problem with "naked" radio not having the same top padding, so more work needed on that in #19141)