[macOS] Feedback can't be submitted

[Jonas-Sander]

Describe the bug

When trying to submit a feedback a SnackBar with a generic error message appears.

Steps to Reproduce

1. Open Sharezone on macOS
2. Go to the feedback page
3. Write something into the feedback fields
4. Click onto "Submit" ("Abschicken")

Current broken behavior

A generic error SnackBar appears. The feedback is not submitted.

Expected behavior

The feedback should be submitted / sent to our backend.

Screenshots, videos or logs

Tested device

• Device: MacBook Pro (13 inch, 2018)
• OS: macOS Big Sur 11.6
• App version: 1.5.81 (taken from AppStore, version can't be loaded inside the app #98 )

Additional context

Possibly related to the package_info_plus (no implementation for macOS for the old version we use)

Original issue: https://gitlab.com/codingbrain/sharezone/sharezone-app/-/issues/1416

Possible solution

Use newer version of package_info_plus