Jiffy locale initialisation trims country code

[Brazol]

When Jiffy locale is initialized inside StreamChatState only languageCode is passed. Is that intended?

When current locale is "en_gb" the "gb" part is not passed to Jiffy and dates inside chat are displayed in the US format instead of UK. If I change Jiffy.locale(languageCode); line to Jiffy.locale(currentLocale.toString()); it works as expected.

[imtoori]

#1255
I just opened this pr to fix this issue
Thanks for reporting it