Download emails have invalid URL for DOI links

[nickdos]

Biocache-service generates the download email via a download-email.html template file. There are 2 versions of the DOI link provided in the email, one for the ALA's DOI service (doi.ala.org.au) and the other is the canonical DOI link (doi.org).

The canonical version is currently broken due to containing an internal space character in the URL and thus is not clickable. Its being populated by the variable officialDoiUrl, which appears to have the host component populated by a config var of official.doi.resolver.

The DOI for this download is https://doi.org /10.26197/ala.0afdc816-ecfa-4a2f-b65f-d269521373e8

The space is just after the doi.org string and comes through as encoded space %20 - https://doi.org%20/10.26197/ala.0afdc816-ecfa-4a2f-b65f-d269521373e8

Fix is to remove this space from the variable assignment or config value (official.doi.resolver most likely).