by default will return a string of date in GMT, offset with WIB timezone.
required argument: date, can be a string or number (Unix timestamp)
optional arguments: offset: string (e.g. "+14"), dateStyle and
timeStyle both take the value of "medium" (default), "full", "long", or
"short"
usage:
import { offsetDate } from "https://esm.town/v/foliage/dateWithWIBTimeZone/main.ts";
const dateInGMT = offsetDate(dateInMyTown);