feat(controls): Make UFormRow render `label` tag to make it clickable

Before: label is just label Label is HTML label tag (https://developer.mozilla.org/ru/docs/Web/HTML/Element/label), which gets us nice behavior - when I click on label, control gets a focus.

@dmytro.rudnyk - please have a look. As far as I concerned - it does not break anything, but that's just me :)