scraper: add missing 'daphne' platform index
scraper: add missing 'daphne' platform index

Fixes scraping errors due to erroneous system chosen.

jrassa/EmulationStation,jrassa/EmulationStation,joolswills/EmulationStation,joolswills/EmulationStation,joolswills/EmulationStation,jrassa/EmulationStation,joolswills/EmulationStation,jrassa/EmulationStation