Redesign carbs remote screen with picker-based absorption time (#567)

* Refactor absorption time handling in LoopAPNSCarbsView to use separate hour and minute states, enhancing clarity and usability

* Redesign date and absorption time pickers to use NavigationStack for improved layout and navigation experience

* Refactor time constraint handling in LoopAPNSCarbsView to use configurable maxPastHours and maxFutureHours constants

* Enhance absorption time handling in LoopAPNSCarbsView with configurable limits and presets

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Co-authored-by: codebymini <daniel@codebymini.se>

Author: bjorkert