feat: Adds JSON API segment

[mwiedemeyer]

Prerequisites

• [x] I have read and understood the [contributing guide][CONTRIBUTING.md].
• [x] The commit message follows the [conventional commits][cc] guidelines.
• [x] Tests for the changes have been added (for bug fixes / features).
• [x] Docs have been added/updated (for bug fixes / features).

Description

This PR adds a segment for calling any JSON API and displays a json property from the response. As I have no real experience with go I hope this is ok and valuable for the ecosystem.

This segment can also be updated in the future with more features like authentication, etc.

[JanDeDobbeleer]

@mwiedemeyer I want to make this a little bit more generic. I would name it http rather that jsonapi, that way we can execute any http call in the future and also allow to define HTTP method etc...

[mwiedemeyer]

Hi, thanks, good idea. I've renamed jsonapi to http and also already added the http method as a property. However my go experience is not enough to make it even more generic and add a body, things like that. Hope you can enhance it even further or use it as it is for now.

[JanDeDobbeleer]

@mwiedemeyer I'll pick it up 👍