Preview file: Preview button is showing full screen file

[jrcastro2]

Package version (if known):

Describe the bug

When clicking on file preview the entire page reloads and shows the preview of the file, but it should preview the file in the iframe.

Steps to Reproduce

1. Upload some .pdf files
2. Search for the record and access the details
3. Click on the preview for one of the uploaded files
4. The page reloads to show only the preview of the file

Expected behavior

It should reload only the iframe and not the entire page

Screenshots (if applicable)

Additional context

Maybe it's necessary to touch invenio-previewer