[Bug]: sbb-icon-sidebar-container integration issue fix

[aiAdrian]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Bug type

Functionality

Which version are you using

2.7.11

Operating system

No response

Browser / Browser version

No response

Input mode

None

Additional settings

No response

What happened?

sbb-icon-sidebar-container has a hard coded style -> change to use css

Steps to reproduce the issue

Technical issue / refactoring

Relevant log output

No response