Improve empty state if there are no Viewports yet

Description

Currently the empty state is completely empty. We should use this space to explain some parts of viewport instead.

Environment

None
Fixed

Assignee

Unassigned

Reporter

Sync User [K15t]

Labels

None

Participants

None

QA Status

None

Deployment

None

Documentation Status

None

UI Concept

None

External Votes

None

Components

Fix versions

Configure