Custom cookie name on 'local' Scheme

[epartipilo]

What problem does this feature solve?

The ability to use the same cookie in different subdomains that does not use Nuxt or Vue + Vuex

What does the proposed changes look like?

strategies: {
local: {
cookieName: 'ajwt'
...
}
}

_{This feature request is available on Nuxt.js community (#c117)}