[Bug]: no scrollbar to the right in files when using high contrast theme

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⚠️ This issue respects the following points: ⚠️

• [x] This is a bug, not a question or a configuration/webserver/proxy issue.
• [x] This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• [x] Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• [x] I agree to follow Nextcloud's Code of Conduct.

Bug description

If you switch to high contrast mode in apperance and accessibility the scroll bar to the right disappears in files. You can scroll with arrows but you cant see the scrollbar.

Steps to reproduce

1. switch to high contrast mode
2. go to a folder where you have lots of files.
3. Notice that the scrollbar is gone

Expected behavior

Have a scollbar to the right of the screen

Nextcloud Server version

30

Operating system

Debian/Ubuntu

PHP engine version

PHP 8.2

Web server

Apache (supported)

Database engine version

MariaDB

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• [ ] Default user-backend (database)
• [x] LDAP/ Active Directory
• [x] SSO - SAML
• [ ] Other

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

No response

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Normal mode.

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High contrast applied