Idrinth / habit-evaluator / 22073816301

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Fix Add Habit page not visible after navigation via ViewPager2 (#433)

When navigating from Home to Add Habit via smooth scroll, the ViewPager2
passes through intermediate pages (Diary, Sleep, etc.) which trigger
onPageSelected callbacks. These callbacks update the bottom navigation
selectedItemId, which synchronously fires the onItemSelectedListener.
That listener then calls setCurrentItem() for the intermediate page,
interrupting the smooth scroll to Add Habit.

Add isSyncingBottomNav guard to onItemSelectedListener (matching the
existing guard in onItemReselectedListener) to prevent bottom nav
selection changes triggered by page scroll callbacks from redirecting
the ViewPager during programmatic navigation.

https://claude.ai/code/session_01EZUQhtxUFBqUWf6eUDNmDU

Co-authored-by: Claude <noreply@anthropic.com>

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