fix: Let dropdown overflow the content in fip validity

[MoritzWeber0]

Make this overflow possible:

[github-actions]

Hi there! 👋

Thank you for your contribution to the FIP Guide! 🚀
We appreciate your effort in making rail staff travel information more accessible. 🚄

Checklist before merging:

• Added a description to the Pull Request
• Checked the License of new pictures (non-commercial use without attribution)
• Modified content in English
• Modified content in German
• Modified content in French

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[therobrob]

Did you intend for it to extend beyond the footer? I‘d rather like an dropdown with fixed height and overflow-y: scroll to prevent it to extend beyond the footer. The native browser/OS-drodowns neither behave this way. 🤔

[MoritzWeber0]

Did you intend for it to extend beyond the footer? I‘d rather like an dropdown with fixed height and overflow-y: scroll to prevent it to extend beyond the footer. The native browser/OS-drodowns neither behave this way. 🤔

That's a good idea I haven't thought of yet. I'll try it out when I have some for it 😊

[MoritzWeber0]

Another issue with this implemention that needs fixing