Upload template points at minified JS file that was removed at django 3.2

[andylolz]

admin/js/collapse.min.js is referenced here:

django-filebrowser-no-grappelli/filebrowser/templates/filebrowser/upload.html

Line 18 in 310e027

<script type="text/javascript" src="{% static "admin/js/collapse.min.js" %}"></script>

This minified file was removed at django 3.2:
https://docs.djangoproject.com/en/3.2/releases/3.2/#id1

Minified JavaScript files are no longer included with the admin. If you require these files to be minified, consider using a third party app or external build tool. The minified vendored JavaScript files packaged with the admin (e.g. jquery.min.js) are still included.

It would be forwards and backwards compatible to instead reference the unminified version here.

[smacker]

I released the new version with your fix: https://pypi.org/project/django-filebrowser-no-grappelli/#history

file-browser 4 dropped old django versions so I think we can just require v3.2 as the new minimal compatible django.