Find a way to expose locale files to Storybook

[cezaraugusto]

After brave/brave-core#2857 we have two locales for the same features, one for brave-core (real one that goes to Transifex) and another one for storybook prototyping (named fakeLocale).

Ideally we could have both places using the same source. As far as I know Storybook can only read JavaScript, so maybe outputting results in .grd files as JSON? I don't think it's possible without much work but having a single JSON file similar to extension's messages would be ideal.

cc @petemill @mkarolin I don't think this is top priority but would be cool to have your input about what we can do right now with as low effort/time as possible.

[petemill]

Perhaps have a webpack plugin which converts grd to json

[petemill]

https://www.npmjs.com/package/xml-loader

[NejcZdovc]

@petemill I think that we will need to first parse .grd then find associated _source.cc so that we will get correct keys for associated translation

[petemill]

@NejcZdovc that's a good point, unless we start to use the c++ IDs in JS and remove the go-between layer, e.g. locale.getString('IDS_BRAVE_WELCOME_PAGE_MAIN_TITLE')