fix (french): replace ${\d} delimiter with #{\d} to resolve currency bugs

[kylemilloy]

There is a bug that occurs with french sometimes where the delimiter we use accidentally gets malformed so that the $ follows afterwards. This happens because in french (and some other languages) instead of showing a currency like $20.00 we show it as 20,00$ and so Google is taking our ${0} values and trying to be helpful by making these {0}$. Instead we change the symbol to #{0} which is ignored.

Resolves #201

@Stichoza