fix(popover): no more duplicate class selectors in dist

[mdt2]

Description

Fix for issue #2705. Previously, there were duplicate class selectors in dist. This update adjusts the selectors to remove the duplicates.

How and where has this been tested?

Please tag yourself on the tests you've marked complete to confirm the tests have been run by someone other than the author.

Validation steps

• Validate that there aren't any duplicate classes in the dist output locally
• Check that popover tip placement still looks good in Storybook

To-do list

• I have read the contribution guidelines.
• I have updated relevant storybook stories and templates.
• I have tested these changes in Windows High Contrast mode.
• If my change impacts other components, I have tested to make sure they don't break.
• If my change impacts documentation, I have updated the documentation accordingly.
• ✨ This pull request is ready to merge. ✨

[changeset-bot]

🦋 Changeset detected

Latest commit: a7b6f94

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@spectrum-css/popover	Patch

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[github-actions]

🚀 Deployed on https://pr-2745--spectrum-css.netlify.app

[github-actions]

File metrics

Summary

Total size: 4.42 MB^*
Total change (Δ): ⬇ 64.78 KB (-1.41%)

Table reports on changes to a package's main file. Other changes can be found in the collapsed Details section below.

Package	Size	Δ
popover	15.93 KB	⬇ 16.16 KB

Details

popover

File	Head	Base	Δ
index-base.css	15.78 KB	31.93 KB	⬇ 16.16 KB (-50.60%)
index-theme.css	0.75 KB	0.75 KB	-
index-vars.css	15.93 KB	32.09 KB	⬇ 16.16 KB (-50.35%)
index.css	15.93 KB	32.09 KB	⬇ 16.16 KB (-50.35%)
metadata.json	10.32 KB	26.63 KB	⬇ 16.31 KB (-61.24%)
themes/express.css	0.66 KB	0.66 KB	-
themes/spectrum.css	0.68 KB	0.68 KB	-

* Size determined by adding together the size of the main file for all packages in the library.
* Results are not gzipped or minified.
* An ASCII character in UTF-8 is 8 bits or 1 byte.

[jawinn]

Oh the trouble that a misplaced curly brace can cause 😆 This seems to have fixed it. It's a little tricky to validate with how Storybook currently handles the popover interaction, but I tried all the positioning options + a browser refresh each time and did not see anything unusual for the "with tip" variant.