Enhance "(used)" in styles form element

use code or sup

Here are screenshots of different combinations:
- Claro vs Bootstrap
- In Bootstrap, gap or no gap (because flex remove empty space at end)
- current vs em vs sup vs mark vs code

Trying to reorder attachments for readibility.

@pdureau, your opinion?

I need to try mark in the parenthesis, in sup.

$suffix = ' <sup>(<code>' . \t('used') . ')';

$suffix = ' ';

sup +mark and changed to "applied"

grimreaper → credited pdureau → .

grimreaper → credited stephane aimar → .

Automatically closed - issue fixed for 2 weeks with no activity.