Required form fields to have the asterisks after the label

## Pattern to amend
[Form input fields and dropdowns](https://vanillaframework.io/docs/base/forms)

## Visual

Currently, the asterisk is placed before the label. I would like to propose placing it after the label, as it's most common in other design systems.

## Context

I find that the current placement breaks the alignment of the labels and visually looks very odd. It also isn't the most common way of flagging a field as required, since most websites and products place the asterisk after the label.

* [Carbon](https://carbondesignsystem.com/components/form/usage#live-demo) writes the word "Required" after the input which makes it explicit
* [Github](https://primer.style/design/ui-patterns/forms/overview) places the asterisk after the label
* [Gov UK](https://design-system.service.gov.uk/components/fieldset/) also writes optional or required depending on what the majority of the fields are