DBaaS: Better naming clarification

Problem: For better terms usage, the first time user sees the term, it's good to write it fully.  In PMM UI it's settings page

UI/UX: 

Acceptance criteria 

• DbaaS section in Settings have a full name 

Out of scope: TBD

Suggested implementation:
TBD

How to test:
TBD

Details:
TBD