Fix button deactivation after dictionary download

Julien LepillerSun May 31 17:10:49+0200 2020

7f88254

nani/app/furiganatextview/src/main/res/values
namelast commitdate
attrs.xmlAdd furiganaMon Apr 15 20:09:48+0200 2019
strings.xmlAdd furiganaMon Apr 15 20:09:48+0200 2019