Friendly Request: Adjust 12-Hour Time Format to Show 12:00 Instead of 00:00

[SamuelPareds]

Hello,

First of all, thank you for creating and maintaining the omni_datetime_picker package. It's been a fantastic tool for our project.

I've noticed a small issue when using the picker in 12-hour mode. Currently, it displays "00:00" instead of "12:00" for midnight or half-day. This can be a bit confusing for users, especially in Latin America, where it's common to see "12:00" for midnight or half-day in the AM/PM format.

It would be incredibly helpful if this could be adjusted to display "12:00" instead of "00:00" when in 12-hour mode. We understand this is a free library and you're not obligated to make changes, but this adjustment would greatly enhance usability for us and likely for others with similar time display conventions.

Thanks again for your hard work on this package. We really appreciate it!