Add co-occurring WikiProject panel

[carlinmack]

Daniel mentioned that it would be useful to see co-occurring WikiProjects like we do with co-occurring topics on the topics aspect

Description

Please include a summary of the change, relevant motivation and context. If possible and applicable, include before and after screenshots and a URL where the changes can be seen.

WikiProject Invasion Biology

WikiProject Covid-19

WikiProject Film

Caveats

Please list anything which has been left out of this PR or which should be considered before this PR is accepted
Check any of the following which apply:

• 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)

If you make changes to the Python code

• My code passes the tox check, I can receive warnings about tests, documentation or both

Testing

Please describe the tests that you ran to verify your changes. Provide instructions, so we can reproduce. Please also list any relevant details for your test configuration.

• Test A
• Test B

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, ...)

[fnielsen]

This id does not correspond to the id in the HTML tag.

[fnielsen]

https://scholia.toolforge.org/wikiproject/Q115206846#co-occurring-wikiprojects

[fnielsen]

I changed the filename back to what you originally had. Would this not be the most "natural"?

[carlinmack]

I was matching https://github.com/WDscholia/scholia/blob/master/scholia/app/templates/topic_co-occurring.sparql

[fnielsen]

Ok. I see. I do not know whether we should change it then. Currently it fits with the headline, but there is inconsistency.