Pixel Journal update prepares for audio integration and backups

Recent updates to the Pixel Journal application indicate that users will soon be able to record and import audio files into their entries through integration with Google Recorder. Code references also point to support for adding existing voice transcripts in the future. Additionally, a new settings feature will allow users to export all of their journal content, including photos and videos, into a single zip file for local backup. These additions aim to expand the functionality of the Pixel-exclusive app.