BB-528: Index author in ElasticSearch

[tr1ten]

Problem

BB-528 ticket for adding author name for work

Solution

index the author in ES and replace author with disambiguation for work having author

Before

After

Areas of Impact

1. generateIndex to index author property.
2. dropdown related component for relationship.

[MonkeyDo]

Thanks for working on that!
I'm looking forward to this feature, i think it's very helpful.

I was entering a book just yesterday and wanted that exact feature !

[MonkeyDo]

I took the liberty to finish things up, better late than never !
Here's where I got to for showing the author in the autocomplete search results, keeping the disambiguation as it was before and styling the author names:

And as for the search page, authors are now used as search terms for work entities, which is super useful. For example I searched for "lovecraft" and I get both results with lovecraft in the name, but also work entities with the "written by" relationship toH. P. Lovecraft.
We display the authors in the same way as above: