refactor(www): consistent spacing in mobile layout

[asrvd]

trafficstars

Also closes #907

✅ Checklist

• [x] I have followed every step in the contributing guide (updated 2022-10-06).
• [x] The PR title follows the convention we established conventional-commit
• [x] I performed a functional test on my final commit

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Changelog

• all the elements in docs pages have consistent horizontal padding.
• fixed the broken regex for getting en link in outdated page banner.

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Screenshots

💯

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Latest commit: e2eeb239ca0128393c80926aec445b9b6d1f9443

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1 Ignored Deployment

Name	Status	Preview	Updated
create-t3-app	⬜️ Ignored (Inspect)		Dec 5, 2022 at 10:33PM (UTC)

[github-actions[bot]]

⚡️ Lighthouse report for the changes in this PR:

Category	Score
🟢 Performance	100
🟢 Accessibility	100
🟢 Best practices	100
🟠 SEO	86
🟠 PWA	54

Lighthouse ran on https://create-t3-app-git-asrvd-www-t3-oss.vercel.app/

[asrvd]

@c-ehrlich