* install date-fns-tz
* add date locale hook
* refactor formatUnixTimestampToDateTime
Use date-fns style instead of using strftime. This requires changing the i18n keys to the way date-fns represents dates (eg: "MMM d, h:mm:ss aaa" instead of "%b %-d, %H:%M"
* refactor calendar to use new hook
* fix useFormattedTimestamp to use new formatUnixTimestampToDateTime date_format
* change i18n keys to new format
* fix timeline
* fix review
* fix explore
* fix metrics
* fix notifications
* fix face library
* clean up
