File and image field form buttons outside of viewport

Problem/Motivation

If you run your site with Oliviero theme - the node edit form looks broken on mobile devices (under Oliviero). It is not usable.

Steps to reproduce

1. Setup Oliviero as default theme
2. Setup Claro as Admin theme
3. Disable "Use the administration theme when editing or creating content"
4. Add "image" field and "file" field to content type
5. Add content and upload a fiew files and images
6. Now switch to your mobile view and open the node edit form.
7. The "image" and "file" fields move outside the view port of the browser. Delete buttons are not accessible and the forms look broken, overflowing and so on.
8. Compare to Claro - all works well.

Proposed resolution

Fix the defects. Copy/adapt the missing css from Claro.

Remaining tasks

REview

User interface changes

Before

After

Introduced terminology

N/A

API changes

N/A

Data model changes

N/A

Release notes snippet

N/A