Change label over drug/chemical/mirna search field

Change the text of the label over drug/chemical/mirna search field from "SEARCH:" to "SEARCH FOR TARGETS OF:", see attached image.

changed milestone to %v12.0.0

created branch 300-change-label-over-drug-chemical-mirna-search-field

mentioned in merge request !213 (merged)

closed via commit 29c7042a

closed via merge request !213 (merged)

mentioned in commit 29c7042a