Notifications use 'UTBot' name instead of 'UnitTestBot'

[Vassiliy-Kudryashov]

Description

We have "GotItMessage" and a set of notifications with wrong name mentioned inside

To Reproduce

First time (with clean IDEA config) plugin shows the message:

Also there are notifications "UTBot: unit tests generated successfully", "UTBot: unit tests generated with warnings"

In these cases "UTBot" has to replaced with "UnitTestBot"