Migrate Navigation 3 migration-guide snippets

[bsagmoe]

Code snippets are for:

• https://developer.android.com/guide/navigation/navigation-3/migration-guide

List of modifications:

• Migration-guide page: Migrated 11 snippets to GitHub (RouteA before/after, NavigationState.kt, Navigator.kt, rememberNavigationState call, isSelected before/after, entryProvider, NavHost before/after, NavDisplay).

Snippets not migrated:

• Line 121 (Version catalog) because it is a dependency block.
• Line 140 (Gradle dependencies) because it is a dependency block.

[snippet-bot]

Here is the summary of changes.

You are about to add 13 region tags.

• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:38, tag android_compose_navigation3_route_a_after
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:48, tag android_compose_navigation3_remember_navigation_state
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:72, tag android_compose_navigation3_is_selected_after
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:80, tag android_compose_navigation3_entry_provider
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:89, tag android_compose_navigation3_nav_host_after
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:125, tag android_compose_navigation3_nav_display
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationAfter.kt:138, tag android_compose_navigation3_lifecycle_after
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationBefore.kt:44, tag android_compose_navigation3_route_a_before
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationBefore.kt:52, tag android_compose_navigation3_is_selected_before
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationBefore.kt:71, tag android_compose_navigation3_nav_host_before
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationMigrationBefore.kt:120, tag android_compose_navigation3_lifecycle_before
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/NavigationState.kt:19, tag android_compose_navigation3_navigation_state
• compose/snippets/src/main/java/com/example/compose/snippets/navigation3/migration/Navigator.kt:19, tag android_compose_navigation3_navigator

---

This comment is generated by snippet-bot.
If you find problems with this result, please file an issue at:
https://github.com/googleapis/repo-automation-bots/issues.
To update this comment, add snippet-bot:force-run label or use the checkbox below:

• Refresh this comment

[riggaroo]

Can you remove these comments?