Study usage of <fieldset> around .quantity-selector

[louismaximepiton]

Prerequisites

• I have searched for duplicate or closed feature requests
• I have read the contributing guidelines

Proposal

Study a11y of this component and transform the HTML of the Quantity Selector if agreed by a11y experts to:

<fieldset class="quantity-selector">
  <legend>Blah blah</legend>
  <input type="number" id="inputQuantitySelector" class="form-control" aria-live="polite" data-bs-step="counter" name="quantity" title="quantity" value="0" min="0" max="10" step="1" data-bs-round="0" aria-label="Quantity selector">
  <button type="button" class="btn btn-icon btn-secondary" aria-describedby="inputQuantitySelector" data-bs-step="down">
    <span class="visually-hidden">Step down</span>
  </button>
  <button type="button" class="btn btn-icon btn-secondary" aria-describedby="inputQuantitySelector" data-bs-step="up">
    <span class="visually-hidden">Step up</span>
  </button>
</fieldset>

Motivation and context

Easier to use from an end-user pov (disabled state on QS only will make it work).
Better Accessibility.