fix: normalized left padding for Heros

[JoshuaKGoldberg]

PR Checklist

• [x] Addresses an existing open issue: fixes #264
• [x] That issue was marked as status: accepting prs
• [x] Steps in CONTRIBUTING.md were taken

Overview

Uses the var(--widthPagePadding) introduced in #254.

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Name	Status	Preview	Comments	Updated (UTC)
joshuakgoldberg-dot-com	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 23, 2024 7:01pm