fix: crash on Android 12L / 13

[hig-dev]

The app crashes on my Android 13 emulator.
This PR fixes this issue.

More info:

1. https://pub.dev/packages/flutter_local_notifications#-android-setup
2. coreLibraryDesugaringEnabled option in android/app/build.gradle causes immediate flutter crash (java.lang.NoSuchMethod) on Android 12L/13  flutter/flutter#110658 (comment)
3. https://stackoverflow.com/a/74257036

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ REPOSITORY	git_diff	yes		no	0.06s

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[github-actions]

Visit the preview URL for this PR (updated for commit 1d8dd10):

• https://studyu-dev-app--pr581-fix-crash-on-android-r9nf1a4t.web.app
• https://studyu-dev-designer--pr581-fix-crash-on-android-6sahkbz5.web.app

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[johannesvedder]

Nice I haven't tested it with lower Android versions