Fix more actions button not properly displayed

[f1sh1918]

Describe the bug
If the card extension notification is displayed and multiple cards are activated on the device so the carousel indicator is shown, the "Weitere Aktionen" Button is not properly displayed and can't be used.
Currently a workaround is applied to add an additional sized box.

To Reproduce
Steps to reproduce the behavior:

1. Remove SizedBox() in card_detail_view
2. Activate multiple cards for koblenz and make one card extendable for koblenz
3. Scroll down to "More actions"
4. Button is not displayed and can't be used
5. May only happen for ios

Expected behavior
The button will be displayed properly

Screenshots