Use service instead of asynctask to download dictionaries in the background

Julien LepillerWed Jun 10 23:15:02+0200 2020

a080975

nani/app/furiganatextview/src/test/java
namelast commitdate
eu/Add furiganaMon Apr 15 20:09:48+0200 2019
se/Add furiganaMon Apr 15 20:09:48+0200 2019