[Bug]: Button and scrollbar not dark themed for activity feed / actions

[AndyScherzinger]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Steps to reproduce

1. open the activity feed

Expected behavior

dark themed UI elements

Which files are affected by this bug

none

Operating system

Windows

Which version of the operating system you are running.

Windows 11 Pro

Package

Official Windows MSI

Nextcloud Server version

30.0.0

Nextcloud Desktop Client version

daily 19/09/2024

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

Updated from a minor version (ex. 3.4.2 to 3.4.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Enabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

No response

[atlanticfirst]

same issue here

[rr19-hub]

same issue here (Win10 x64), but the same in reverse colors (everything is white)

[f242]

same issue win11 and 3.14.1

[camilasan]

From our tests, this is an issue on the Qt side, so for now we are using Fuse on Windows:
#7270

See https://bugreports.qt.io/browse/QTBUG-123853 and https://bugreports.qt.io/browse/QTBUG-113469