fix: resolve Play Store app installation problem in anonymous mode

Description

This MR fixes installation issue for Play Store apps in anonymous mode.

Screenshots

Technical details

App Lounge's handling of AuthData, after the new gplayapi update, was incorrect. The fix follows the way Aurora Store handles it.

Tests

Issues

https://gitlab.e.foundation/e/os/backlog/-/issues/3728

10 commandments of code review

👪 ❤️ https://gitlab.e.foundation/groups/e/-/wikis/contribute/development-processes/code-review-guidelines