[Callout] Description in paragraph

[jeremie-lucca]

Description should be in a paragraph:

<div class="callout">
    <div class="callout-content">
        <div class="callout-content-description">
            Description
            <div class="callout-content-description-actions">
                <button class="button mod-outlined" type="button">Button</button>
                <button class="button mod-ghost" type="button">Button</button>
            </div>
        </div>
    </div>
</div>