Add Wear navigation 3 snippets

[ithinkihaveacat]

The Migration.kt looks a bit weird because it's composed of very short before/after code fragments.

[gemini-code-assist]

Code Review

This pull request introduces Navigation 3 to the Wear OS module by adding the necessary dependencies and implementing a sample application that demonstrates screen navigation and ViewModel integration. A review comment suggests moving the hardcoded version of the compose-navigation3 dependency into the version catalog to maintain consistency with the project's dependency management.

[snippet-bot]

Here is the summary of changes.

You are about to add 9 region tags.

• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:32, tag android_wear_navigation3_migration_destinations_nav3
• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:48, tag android_wear_navigation3_migration_setup_nav3
• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:82, tag android_wear_navigation3_migration_destinations_nav2
• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:91, tag android_wear_navigation3_migration_init_nav2
• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:98, tag android_wear_navigation3_migration_init_nav3
• wear/src/main/java/com/example/wear/snippets/navigation3/Migration.kt:107, tag android_wear_navigation3_migration_setup_nav2
• wear/src/main/java/com/example/wear/snippets/navigation3/Navigation.kt:32, tag android_wear_navigation3_destinations
• wear/src/main/java/com/example/wear/snippets/navigation3/Navigation.kt:45, tag android_wear_navigation3_setup
• wear/src/main/java/com/example/wear/snippets/navigation3/Navigation.kt:97, tag android_wear_navigation3_viewmodel

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