fix: show value for simple tiles on iOS

[mmng-a]

Connection with issue(s)

No related issue.

Testing and Review Notes

This PR updates the iOS implementation so that SettingsTile.value is displayed for simple tiles as well as navigation tiles.

The README documents value as being displayed for simple and navigation tiles, and the Android implementation already displays the value for simple tiles. Before this change, iOS only displayed value for navigation tiles.

Review steps:

1. Add a simple SettingsTile with a value.

SettingsTile(
  title: const Text('Version'),
  value: const Text('1.0.0'),
)

2. Run the example app on iOS.
3. Confirm that the value is displayed on the right side of the tile.
4. Confirm that navigation tiles still display their value as before.
5. Confirm that switch tiles are not affected.

Screenshots or Videos

Please focus on the "Phone number" row.

Before, the value was not displayed on iOS simple tiles. After this change, the value is displayed on the right side of the row.

Before	After

To Do

• [] double check the original issue to confirm it is fully satisfied
• add testing notes and screenshots in PR description to help guide reviewers
• request the “UX” team perform a design review (if/when applicable)