Add option to set significantDigits for compact format

[dzakyraf]

Is your feature request related to a problem? Please describe.
Yes when we format this number: 1314731674000000 this turnout be 1,310T in web not 1,315T. After investigate this is because in web js have significantDigits in 3

Describe the solution you'd like
add option in settings for set this

Describe alternatives you've considered

Additional context
If u using intl in behind you can use this snipplets as inspiration:

var formatter = NumberFormat.compact(locale: "id_ID")
          ..significantDigits = 4;
String formatted = formatter.format(value);