JSON parser ignores tabStyle option

[SkaceKamen]

Describe the bug

JSON parser ignores i18n.tabStyle option and always uses spaces when saving the translation file.

Extension Version
i18n Ally 2.2.6

To Reproduce

1. Set i18n.tabStyle to tab
2. Add new translation key
3. JSON file is formatted using spaces

Solution?

I did a little digging and seems like these are the lines that cause this issue:

https://github.com/antfu/i18n-ally/blob/e2881d9f1f20ec4c849c9a0daed24d22d63eb773/src/parsers/json.ts#L21

https://github.com/antfu/i18n-ally/blob/e2881d9f1f20ec4c849c9a0daed24d22d63eb773/src/parsers/json.ts#L23

According to docs of both of these functions, you just have to specify tab char instead of number to use tabs to indent the result:

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
https://www.npmjs.com/package/json-stable-stringify#space

So, all you have to do to fix this is something like this:

const indent = this.config.tab === '\t' ? this.config.tab : this.config.indent

[antfu]

Can you make a PR? Thanks!

[SkaceKamen]

Sure, there it is :)