According to its prop, the Button component can be rendered as
a link but in this case, the prop `disabled` has no effect. So to fix
that if the Button receives a `href` prop and is disabled, we apply
a modifier class `.c__button--disabled`.
Replaced deprecated '@import' with '@use' to align with best practices.
Refactored stylesheet to behave as a partial, enhancing SASS compilation
efficiency.
