List sound inputs

curl 'http://localhost:8080/api/audio/sources'

const res = await fetch("http://localhost:8080/api/audio/sources");
const data = await res.json();
console.log(data);

import requests

res = requests.get(
    "http://localhost:8080/api/audio/sources",
)
print(res.json())

[
  {
    "id": "pulse:alsa_output.monitor",
    "label": "Speakers (monitor)"
  }
]