JSON 'List' name inconsistent with JSON specification

[frewsxcv]

In the Rust JSON serialization module, an ordered list of values is referred to as a List. In the official JSON specification, an ordered list of values is called an Array. I propose we rename List to Array for the sake of consistency with the original specification. If approved, I'd be happy to make the change and submit a pull request.

[gamazeps]

Seems ok to me (plus it's implemented with an Vector, do it's really an array).
Do your PR :)

[frewsxcv]

Great, I'll try to get that done tonight

[frewsxcv]

Went faster/easier than I expected. Pull request can be found here: #19114