RTL with logical properties.

[Jeremy-EBSCO]

A couple of the [dir="rtl"] {} selectors could be removed if logical properties were used. I see a few components that could have them included:

• _nav.scss
• _accordion.scss
• _form-alt-input-types.scss

This would depend on the browsers/versions that PicoCSS is supporting, but considering there are newer pseudo-class selectors like :is() and :where(), I'm assuming that Pico is targeted for newer browsers that also support logical properties (there are some "partial supports" on 2 versions back https://caniuse.com/?search=logical).

To note: there are a couple of other .scss files that declare RTL but I don't believe that there are logical properties for background-positions, animations or transforms.