fix: Do not import styles that are already included in server bundle

[susnux]

Summary

The styles are already included in server.css / server.scss.

Discovered while working on #43553

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[kesselb]

Nice

[susnux]

/compile

[github-actions]

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