Detect currency based on locale

[tanx]

Electron has an api to detect the current locale: https://electronjs.org/docs/api/locales

N.B. this api needs to be called after the ready event in the main process to work correctly.

We can then send the locale string via IPC to the rendering process and detect the local currency using:
https://github.com/tadeegan/locale-currency

[willpiers]

I would like to give this issue a try - just letting others know

[tanx]

I would like to give this issue a try - just letting others know

Awesome thanks!

[willpiers]

Got it working on a branch :) willpiers@95683e2

I'll take a look at tests tomorrow