Fix audio RTL visual bugs

[sarayourfriend]

Fixes

Fixes #513 by @sarayourfriend
Fixes #512 by @sarayourfriend

Closes #421 as this will address the last two problems in that issue.

Description

Fixes the RTL visual bugs outlined in the issues.

Testing Instructions

Checkout this branch and run it with npm run dev. Then go to http://localhost:8443/audio/8071128a-bebc-4c24-823d-6e26a2e6dfe2 and verify that the two elements outlined in the issue look good in both RTL and LTR mode. Follow the instructions in this issue under the Reproduction headline for how to quickly test RTL and LTR locally.

Checklist

• My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main) or a parent feature branch.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I added or updated tests for the changes I made (if applicable).
• [N/A] I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.

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[dhruvkb]

space-x- classes apply to all children as in

.space-x-1 > * + * {
  margin-left: 0.25rem;
}

Replacing it with pe- classes will mean adding it to all children except the first. Alternatively we could use gap- classes on the flex itself?

[sarayourfriend]

Leaving padding on the last element doesn't seem to introduce any visual problems that I could see. While not being a 1:1 replacement for space-x-* I think it's appropriate in this case? I guess the tailwindcss-rtl plugin doesn't cover the space-<dir>-<unit>.

gap seems like a better solution though. I'll update to that.

[sarayourfriend]

Fixed!

[zackkrida]

LGTM!