Enhance PubTator relevance

[gromdimon]

Is your feature request related to a problem? Please describe.
Currently we provide the most relevant papers from PubTator based only on searched variant itself. However, sometimes it might be usefull to add additional information (as additional variants) to yield more results.

Describe the solution you'd like
Allow adding the specific variant to yield more relevant results?

Describe alternatives you've considered
N/A

Additional context
N/A

[holtgrewe]

We could add a switch to add the variant in the search. The variant would be the one letter amino acid code when applicable (for protein coding genes).

However, that won't help int he gene overview.

I would rather recommend to show the first X words of the abstract only with a "more" link for the entries to compact things. And only display 5 entries with another "show more entries" link.

Then, add LitVar for the seqvars display as this is from the pubtator authors and they have put in more work than we could to associate variants...