[Snippet] Add CameraX migration snippet

[madebymozart]

No description provided.

[snippet-bot]

Here is the summary of changes.

You are about to add 9 region tags.

• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:51, tag android_camerax_initialize_provider
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:84, tag android_camerax_view_preview
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:95, tag android_camerax_view_tap_to_focus
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:105, tag android_camerax_compose_preview
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:120, tag android_camerax_compose_viewfinder
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:138, tag android_camerax_compose_tap_to_focus
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:158, tag android_camerax_compose_rotation
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:170, tag android_camerax_capture_photo
• camerax/src/main/java/com/example/camerax/snippets/Camera1ToCameraXSnippets.kt:205, tag android_camerax_switch_cameras

---

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

[gemini-code-assist]

Code Review

This pull request introduces a set of CameraX code snippets for both Jetpack Compose and View-based implementations, covering initialization, previewing, tap-to-focus, and image capture. It also updates the CameraX dependency version to 1.6.0. Feedback includes wrapping camera initialization in a LaunchedEffect to prevent side effects during recomposition, correcting the version reference for the viewfinder-compose library which typically follows a different versioning cycle, and adding a null-safe check for the display rotation access to avoid potential NullPointerExceptions.