Include information about option values

[TylerLeonhardt]

Testing #241771

I wish I knew the type for these/enum values in the documentation on the right side.

Like for this --omit it has parameter value completions:

but I don't know anything about them when I'm looking at the completion item for --omit:

[meganrogge]

This is sort of related to the idea #241828 that we'd insert a space and trigger suggestions when one is accepted.

[meganrogge]

I guess the question is why do you need to know at that --omit| stage that there are parameters? Can't you just keep typing?

[TylerLeonhardt]

Sometimes flags can be ambiguous without knowing their parameter type. If I don't know the parameter I'm looking for to do a task, it would be better to type/enum info upfront so I can make a better decision.

Just like editor suggest. I'd like to know the parameters of a function and their values:

[Tyriar]

This is what fig is capable of showing, we don't have the RHS yet but probably should:

Not sure about enumerating all the options in detail, but adding sub-text like above would help the user scanning what they're after, especially when detail is hidden.

[Tyriar]

Bumped the priority here, I think this will improve the UX of using options quite a bit.