Redesign initial page when auto-instantiate is off

[mscolnick]

Description

We want to improve the UX for users who have auto-instantiate off (i.e. don't run on startup).

Suggested solution

Some ideas are:

• include a banner to make is easy to run
• add a toggle to turn auto-run on for future (just config for this app)

Alternative

No response

Additional context

No response