showing notification of new message

[Tgentil]

This PR allows users to see the number of new messages they have. Combined with the PR #69, it should resolve issue #68.

[Tgentil]

Before:

inconsistent blur, sometimes it blurs the notification number and other times it doesn't

After:

Never blur the number of message notifications

Selectors:

Old selector:

New selector:

[Tgentil]

@aryomuzakki thank you