fix(config): add descriptions to JSON schema properties

[Keyrxng]

Relates to ubiquity-os/ubiquity-os-plugin-installer#24

[gentlementlegen]

@Keyrxng maybe you should add examples too?

[rndquu]

@Keyrxng Could you:

1. Add examples
2. Fix code conflicts
3. Fix prettier

[Keyrxng]

This shouldn't have been closed.

#48

Can't move til this issue is resolved. I commented elsewhere that not all props need examples because the HTML input ele contains the value already.

[rndquu]

Can't move til this issue is resolved

#48 is not connected with #49 (review)

[Keyrxng]

Can't move til this issue is resolved

#48 is not connected with #49 (review)

There is no description because it is not (at the time) used within the code base, so it is sort of related.

I can review this plugin's code and check again but my issues are being ignored so little point in that

"warningThreshold": {
        "default": 0.75,
        "description": "",
        "type": "number"
      },