Code cleanup following IDE advice

Julien LepillerSun May 31 20:59:07+0200 2020

19e038a

nani/app/furiganatextview/src/androidTest/java
namelast commitdate
eu/Switch to AndroidXSat Apr 25 23:54:54+0200 2020
se/Add furiganaMon Apr 15 20:09:48+0200 2019