Add "Share Sara Baby with Your Friends" Feature (Platform-specific Message)

[suleymansurucu]

In the "Share and More" section, add an option called "Share Sara Baby with your friends". When tapped, the app should share a localized message that includes the correct store link based on the user's platform (Android or iOS only).

Example Message:

For Android:

Hey! I'm using Sara Baby to track my baby's daily life. You can try it too → https://play.google.com/store/apps/details?id=com.suleymansurucu.sarababy

For iOS:

Hey! I'm using Sara Baby to track my baby's daily life. You can try it too → https://apps.apple.com/us/app/sara-baby-tracker-sounds/id6746516938

Tasks

• Add a "Share Sara Baby" button in the Share and More section
• Use Platform.isAndroid or Platform.isIOS to detect device platform
• Use share_plus to share a localized message
• Support English and Turkish via easy_localization
• Test on both Android and iOS devices