[WIP] Implements SPARQL-level config for ASK queries

[egonw]

Description

So far, ASK queries were always run against the globally defined SPARQL endpoint. This patch added the option to configure this for each SPARQL query separately.

Caveats

Non-trivial to test.

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
  • I have made corresponding changes to the documentation
• This change requires new dependencies (please list)

Testing

For the example configured ASK query:

• Go to https://scholia.toolforge.org/work/Q30149558#cito-incoming
• Ensure that the "Reasons why this article is cited" shows up (compare with the live website):

Checklist

• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have not used code from external sources without attribution
• I have considered accessibility in my implementation
• There are no remaining debug statements (print, console.log, ...)

[egonw]

Locally, I do not get the error. But it's reproducible. Just not sure right now how to fix this. Will try that later.

[fnielsen]

There is an error for test_work_cito. Is this just a temporary backend error? Or is it a Scholia error?

[egonw]

There is an error for test_work_cito. Is this just a temporary backend error? Or is it a Scholia error?

@fnielsen, I have yet to explore this. That's why I tagged this PR as draft. I am sorry that was not clear enough. I will debug asap, but in a meeting today.

[fnielsen]

Ok. I did not see the "draft".