Rename locals to locales

[woodcockjosh]

Possible solution to
DefinitelyTyped/DefinitelyTyped#46328 (comment)
#440

@types/i18n would need to be so that

declare namespace Express {
    interface Request extends i18nAPI {
        languages: string[];
        regions: string[];
        language: string;
        region: string;
    }

    interface Response extends i18nAPI {
        locales: i18nAPI;
    }
}

in order to prevent conflict

Alternatively we can just remove strict type in @types/i18n for locals

declare namespace Express {
    interface Request extends i18nAPI {
        languages: string[];
        regions: string[];
        language: string;
        region: string;
    }

    interface Response extends i18nAPI {
        locals: any;
    }
}

I don't see how that helps with applications that want to be strongly typed but its a possible solution.

[coveralls]

Coverage remained the same at 97.773% when pulling 31a048c on woodcockjosh:rename-locals-to-locales into fb9aa22 on mashpie:master.

[mashpie]

dear... in short:

• res.locals -> property of express.js
• res.locales -> property of i18n
• res.locals.locales -> property of i18n

won't merge / can't merge in fact - sorry for so many search & replace

as far as I get it:

    interface Response extends i18nAPI {
        locals: any;
    }

SHOULD NOT be part of i18n types as locals is a property of express response object

while:

    interface Response extends i18nAPI {
        locales: i18nAPI;
    }

COULD be (didn't check i18nAPI types in detail though)