Thousands separators in Journal
Thousands separators in Journal

Fix the `formatCurrency` function to use the correct thousands-
and decimal separators, according to the locale.

aumayr/beancount-web,yagebu/fava,yagebu/fava,corani/beancount-web,aumayr/beancount-web,yagebu/fava,yagebu/fava,beancount/fava,aumayr/beancount-web,beancount/fava,corani/beancount-web,beancount/fava,corani/beancount-web,aumayr/beancount-web,beancount/fava,yagebu/fava,beancount/fava,corani/beancount-web