Semester selection shows currently selected semester twice

[MariusAlbrecht]

Describe the bug
When the semester selection is expanded the current one is shown twice. Once as part of the normal layout and once as part of the of the selection options [sc1]

To Reproduce
Steps to reproduce the behavior:

1. Open the site (not on a stream)
2. click "Show all" underneath the current, highlighted senester

Expected behavior
something like this: [sc2] remove the second (non highlighted) current semester and reduce the bottom-margin of the highlighted one (class mb-4)

Screenshots
                                   sc1                                                                            sc2

Desktop (please complete the following information):

• OS: Win 11
• Browser: Firefox 118.0.1

Smartphone (please complete the following information):
not tested

Additional context
the current semester entry doesn't even seem to trigger a new selection. It's practically the same as the "Show less" button