This commits adds the '$o-opacity-disabled' value in the opacity
utility class generation list, allowing to use the 'opacity-disabled'
class to style on the fly elements that don't support disabled states by
default (eg. generic divs)
The commit introduces also a new '.opacity-trigger-hover' class.
It can be applied on parent elements in order to trigger their children
opacity states. Eg:
<div class="opacity-trigger-hover">
<span>Always visible</span>
<span class="opacity-0 opacity-100-hover">
Visible when parent is :hover
</span>
</div>
Part of the overall v16 SCSS optimization/restyle, task-2704984.
task-2918463
Part-of: odoo/odoo#97051
stefanorigano (SRI)
fe5a3a89fb