JSV Root title and description

[philsturgeon]

Describe the bug

The root of JSV is rather cluttered with information not entirely relevant in a HTTP Operation documentation context.

Summary

Let's make sure thee three scenarios have a root like these designs:

• Array Body
• Object Body
• Root Combiner (anyOf/oneOf body)

Figma design: https://www.figma.com/file/IkNc59AU2JN5Kc1qbd2AiB/Elements?node-id=645%3A5074

MT: The only scenario I can think of that isn't covered above is the schema being a primitive. Let's figure out something reasonable for that.

Misc info

Let's remove the following:

1. The caret next to the root object, the caret next to Body is enough
2. The Title (the first "Installation" in this picture)
3. The Description (the second "Installation" in this picture)
4. One level of nesting. With the title gone, id and account in this image can move to the left where it was.

Currently an body containing an object looks like this:

[philsturgeon]

@marbemac thoughts on what to do about root title/description? Should we remove it all and just say "object" there?

Also should the root even have an expandable caret or not? Having the body be expandable and the root be expandable seems redundant to me.

[marbemac]

Yeah I tried to demonstrate most situations in the design - https://www.figma.com/file/IkNc59AU2JN5Kc1qbd2AiB/Elements?node-id=645%3A5074.

As it stands now the operation UI doesn't "flow" particularly well, making it more difficult to scan and read. Wether or not what I have in the designs will work well in practice for as wide a set of use cases as possible is def up for debate, but I think what's in the designs is at least better than what we have now in elements.