message: CHANGELOG: Combine SnackBarService-migration entries
diff: @@ -40,12 +40,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  - Add vars to HTML-files.
  - Add translations to resource files.
  - Include translation for components.
  -- Migrate MatSnackBar to SnackBarService. [#724](https://github.com/geli-lms/geli/pull/724)
  +- Migrate MatSnackBar to SnackBarService. [#724](https://github.com/geli-lms/geli/pull/724) [#730](https://github.com/geli-lms/geli/pull/730)
  - Reload user list after deleting an account. [#724](https://github.com/geli-lms/geli/pull/724)
  - Validate form before submit when creating a new course. [#724](https://github.com/geli-lms/geli/pull/724)
  - Validate :id for CourseController details route. [#724](https://github.com/geli-lms/geli/pull/724)
  - Added search function for available courses. [#723](https://github.com/geli-lms/geli/issues/723)
  -- Another MatSnackBar to SnackBarService migration. [#730](https://github.com/geli-lms/geli/pull/730)
  - `getNotificationSettings` does not create new notification settings. [#731](https://github.com/geli-lms/geli/issues/731)
  - Remove `isCourseTeacherOrAdmin` and `isMemberOfCourse`from UserService. [#731](https://github.com/geli-lms/geli/issues/731)
  - Refactored save mechanism of unit edit form. [#532](https://github.com/geli-lms/geli/issues/532)
  