Steps to reproduce

1. Install Ibexa DXP 3.3 or Ibexa DXP v4
2. Add 15-20 new language
3. Create a content
4. Add translations to the content
5. Try to edit content with 20 languages (it depends on your screen size)

Result

Can't see and select all languages to edit

Expected result

All languages should be seen and can be possible to select