Alter the Team Instance creation page to feel more like a page

[cstns]

Epic

#3884

Description

This task should pave the way for the rest of the tasks in #3884.

Which customers would this be available to

All

Acceptance Criteria

• alter the existing instance form to allow it to be embedded without a header
• alter the creation page to feel more like a page than a form

Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate

[joepavitt]

The other page that needs updating here (can you create issue accordingly please) is the Team > Create Application page, as that also has the "Create Instance" form embedded

[cstns]

This is the task for the 2nd page #3933

[joepavitt]

This is the task for the 2nd page #3933

That's the Application > Create Instance page you're linking to, I'm asking for the Team > Create Application page too please

[cstns]

#3943