Reactome link update

[TomConlin]

On the Pathways tab

https://monarchinitiative.org/gene/NCBIGene:125#pathways

links to Reactome for example "Ethanol oxidation"

https://reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=REACT_R-HSA-71384

result in a page not found error

Reactome does have page for "Ethanol oxidation" at

https://reactome.org/content/detail/R-HSA-71384

[jmcmurry]

this is an xref issue; it could be that reactome changed the URIs. The appropriate stanza to fix is here:
https://github.com/monarch-initiative/monarch-app/blob/master/conf/xrefs.json#L569
Though I would want to first make sure there are not issues with type-polymorphic paths that would require polymorphic prefixes.

[kshefchek]

Dupe of https://github.com/monarch-initiative/monarch-app/issues/1518