Fixes return_url for image attachment

[abhi1693]

Fixes: #12538

I have added support for parsing return_url from the request in the table if it exists. The old functionality is still retained if the parameter is not provided. I could not find any other clean way of redirecting the user back to where the request was initiated.

[jeremystretch]

I could be missing something but this would this not be sufficient?

Suggested change

	query_params = request.GET.copy() if request else {}
	if return_url := query_params.pop('return_url', None):
	if return_url := request.GET.get('return_url'):

[jeremystretch]

We can probably simplify this to something like:

return_url = request.GET.get('return_url', request.get_full_path())
url_appendix = f'?return_url={quote(return_url)}' if return_url else ''

[abhi1693]

I could be missing something but this would this not be sufficient?

I tested this using services on device and that worked just it was before. Then did the same test using image attachment and post edit and delete, I landed up on the device page.

While implementing this, I was thinking the same solution should be implemented application wide though.

If you can think of a use-case, that I ay have missed let know.

[jeremystretch]

I've introduced the htmx_table template tag as a utility for consistently embedding HTMX tables in this manner. As employing its use beyond image attachments is outside the scope of this issue, I'm going to consider this fixed, and open a separate issue to track its further adoption.