Add ability to customise script tags for form media

[Tom Carrick]

It would be useful to be able to add defer, integrity, type="module", etc. onto the script tags generated by form media.

I couldn't find a way to do this currently. Perhaps something like this:

class MyForm(forms.Form):
    class Media:
        js = [
            {"src": "js/foo.js", "defer": True, "type": "module"},
            "js/bar.js",
        ]

Not sure if we should allow arbitrary stuff to be added or just choose the options that are reasonable

[Mariusz Felisiak]

I think it's possible since 4c76ffc2d6c77c850b4bef8d9acc197d11c47937 by using a class instead of paths, check out an ​example for integrity. Duplicate of #29490.