store choices in json format

[milahu]

to make the data files usable from commonJS and ES6

cd @alheimsins/b5-johnson-120-ipip-neo-pi-r
find ./data -name choices.js | while read i
do
  o=${i}on
  node -e "console.log(JSON.stringify(require('$i'), null, 2))" >$o
  git rm $i
  git add $o
  echo converted $i to $o
done
git commit -m 'store choices in json format'

sample use:

const choices = await (await fetch(`/data/${lang}/choices.json`)).json();

import() only works with *.js files