Use big text style notification

Description

Use big text style notification so that the body of the notification can be read fully.

Screenshots

Before:

Now:

Technical details

Tests

Issues

https://gitlab.e.foundation/e/os/backlog/-/issues/1644

10 commandments of code reviews

👪 ❤ https://gitlab.e.foundation/internal/wiki/-/wikis/mobile-team/guidelines/Code-review