Integrate with SearchRxiv

[koppor]

searchRxiv is a store for making the used search terms availble "forever". The SLR feature should integrate with that.

(Found via https://github.com/CoLRev-Environment/search-query).

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Haddaway, N. R., Rethlefsen, M. L., Davies, M., Glanville, J., McGowan, B., Nyhan, K., & Young, S. (2022). A suggested data structure for transparent and repeatable reporting of bibliographic searching. Campbell Systematic Reviews, 18(4), e1288. doi:10.1002/cl2.1288

https://colrev-environment.github.io/search-query/