Number formatting based on locale

[chk1]

It seems that currently numbers are formatted in the US/English format with d3.format:

babbage.ui/src/components/utils.js

Line 4 in 36fa6e2

export var numberFormat = d3.format('0,000');

In German (and probably other languages) comma and dot are used differently, i.e. the thousand separator is the dot . and comma , is used to separate the decimal place:

EN: 1,000,000.23
DE: 1.000.000,23

d3.format has locale functions, but I have not used it myself and I am not familiar with babbage.ui's code https://github.com/d3/d3-format#formatLocale

Naive solution ideas/questions:

• Would the line in utils.js be a good starting point for implementing this?
• Does it need to be added to the translations in os-viewer and applied dynamically in some way? (or just use browser language defaults?)