[Feature] Support lists in plugin settings

[zAlweNy26]

Is your feature request related to a problem? Please describe.
At the moment the lists are not supported in plugin settings, making it impossible to ask for an array of strings (for example).

Describe the solution you'd like
Support the lists json schema so that it can be used in plugin settings.

[pieroit]

@zAlweNy26 does this require changes core side?
It should be possible to have lists in pydantic models, also the JSON schema should reflect that

[zAlweNy26]

No need for changes on core side, as Pydantic already support lists. The frontend just need to manage the generated json schema for lists.