Allow `picker_options` customization for custom dynamic filters

[Paul-Bob]

Enabling the time picker on a date filter is only possible (for now) if the filter is defined in a date_time or time field.

The filter is using flatpickr behind the scenes, to fully customize the picker we can add the picker_options option where you could configure flatpick options.

Something like:

    dynamic_filter :only_time_example,
      type: :date,
      picker_options: {
        enableTime: true,
        noCalendar: true
      }

    dynamic_filter :date_time_example,
      type: :date,
      picker_options: {
        enableTime: true
      }

Originally posted by @Paul-Bob in #3180 (comment)

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[github-actions]

This issue has been marked as stale because there was no activity for the past 15 days.