chore(PopoverContainer): clean up isRTL hook

[LinKCoding]

Overview

PopoverContainer has its own isRTL useEffect, but this logic now lives in the useDirectionIsRTL hook.
Cleaning up code to use the newer hook.

PR Checklist

• Related to designs:
• Related to JIRA ticket: GMT-1598
• Version plan added/updated (or not needed)
• I have run this code to verify it works
• This PR includes unit tests for the code change
• This PR includes testing instructions tests for the code change
• The alpha package of this PR is passing end-to-end tests in all relevant Codecademy repositories

Testing Instructions

Don't make me tap the sign.

1. Go to story X
2. Do something
3. Do that something in dark mode
4. Check it with VO
5. Finish and do a celebratory dance

PR Links and Envs

Repository	PR Link
Monolith	Monolith PR
Mono	Mono PR

[nx-cloud]

View your CI Pipeline Execution ↗ for commit 8bb855f

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☁️ Nx Cloud last updated this comment at 2026-04-03 18:09:13 UTC

[codecov]

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[codecademydev]

📬 Published Alpha Packages:

Package	Version	npm	Diff
@codecademy/gamut	68.2.3-alpha.186893.0	npm	diff
@codecademy/gamut-icons	9.57.3-alpha.186893.0	npm	diff
@codecademy/gamut-illustrations	0.58.10-alpha.186893.0	npm	diff
@codecademy/gamut-kit	0.6.593-alpha.186893.0	npm	diff
@codecademy/gamut-patterns	0.10.29-alpha.186893.0	npm	diff
@codecademy/gamut-styles	17.13.2-alpha.186893.0	npm	diff
@codecademy/gamut-tests	5.3.4-alpha.186893.0	npm	diff
@codecademy/variance	0.26.2-alpha.186893.0	npm	diff
eslint-plugin-gamut	2.4.4-alpha.186893.0	npm	diff

[github-actions]

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