Add option for different range format and/or token for rangeSeparator

[davidwebca]

Hi,

Since the range salector gets put in a single Input, the range separator is localized in the format added and that could lead to errors when trying to parse out the date range in the back-end. The beta plugin that allows having two separate inputs solves this issue, but for the vanilla range input, that is a problem.

I suggest either adding an option to have a separate rangeFormat option + a range formatter token (ex.: r for localized, R for unlocalized English which defaults to "to")

{
    rangeFormat: "j M H:i R j M H:i"
}

Would yield 22 Nov 4:20 to 22 Nov 4:21

{
    rangeFormat: "j M H:i r j M H:i"
}

With French localization, would yield 22 Nov 4:20 au 22 Nov 4:21

With rangeFormat could be introduced altRangeFormat to follow what altFormat enables.

Your Environment

• flatpickr version used: 4.6.13
• Browser name and version: Safari 17.1
• OS and version: Mac OS 14.1.1