GET: /soundboards
[
  {
  	id: number;
 	position: number;
  	is_favourite: boolean;
  	title: string;
  },
  ...
]

GET: /soundfiles
[
  {
    id: number;
    position: number;
    is_favourite: boolean;
    title: string;
    file_url: string;
  },
  ...
]