fix : UI padding for better layout

[vinay769]

Fix: Ensure Challenges ListTile in Prices Section is Accessible

Description

Before this PR, the Challenges ListTile in the Prices section was not accessible on Android due to it being hidden under the navigation bar.

Changes Made

✔️ Added bottom padding to provide extra spacing.
✔️ Wrapped the content inside a SafeArea to prevent UI overlap issues.
✔️ Ensured all list items remain visible across different screen sizes.

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Before & After Screenshots

Before (Issue Present)

The last item in the list was not visible as it was hidden under the navigation bar.

After (Fixed)

The list now has proper padding and respects the safe area, making all items accessible.

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Fixes & Related Issues

• Fixes: Challenges section in Prices list not accessible.
• Related Issue: [Last list items not visible on Android #6487](Last list items not visible on Android #6487)

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Testing

• ✅ Tested on a physical Android device.
• ✅ Verified on different screen sizes to ensure no UI clipping.
• ✅ Confirmed the issue is resolved across various navigation bar styles.

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Type of Change

🛠 Bug Fix – UI improvement to ensure proper visibility of list items.

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Checklist

• My code follows the project's coding guidelines.
• I have tested the changes on a real device/emulator.
• I have attached screenshots to demonstrate the fix.
• My changes do not introduce any new warnings or errors.

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🚀

[vinay769]

i have used this bottom padding and viewInsets final double bottomPadding = MediaQuery.viewInsetsOf(context).bottom == 0 ? MediaQuery.viewPaddingOf(context).bottom : MediaQuery.viewInsetsOf(context).bottom; is it okay @g123k , viewInsets.bottom is Used keyboard height when open and viewPadding.bottom is Used nav bar height when closed , can i push my changes now

[g123k]

I'm sorry, you'll just have to use viewPadding.
The height of the keyboard has no link here.

[vinay769]

I'm sorry, you'll just have to use viewPadding. The height of the keyboard has no link here.

yes sir , i have successfully removed extra viewInsets in commit @vinay769 [refactor : only used viewPadding](https://github.com/openfoodfacts/smooth-app/pull/6509/commits/92c4f2e888ee520c960d443449df524785924c05)

[vinay769]

Hello @g123k @monsieurtanuki i have made changes accordingly can you please check ✔️

[vinay769]

Hello @g123k and @monsieurtanuki,

Could you please take a look at this PR and let me know if it fully addresses the issue? If not, I’d be happy to close this PR and open a cleaner version instead. Your guidance on this would be greatly appreciated.

Thank you!