[Feature Request] Change decimal separator to comma

[testsieger73]

Current Situation
Decimal separator is full stop / period.
123,456.78

Problem to be solved
Europe, South America and most of Africa use comma as decimal separator, and full stop / period as thousands separator.
123.456,78

Home Assistant automatically changes this depending on the language and / or country settings. bar-card does not, and there is no variable to change it.

[Bpiep]

I would also like this feature, thank you.