message: type for DataSource
diff: @@ -23,7 +23,7 @@ declare class FilePicker<P extends FilePicker.Options = FilePicker.Options> exte
  * Track the active source tab which is being browsed
  * @defaultValue `'data'`
  */
  - activeSource: string;
  + activeSource: FilePicker.DataSource;
  /**
  * A callback function to trigger once a file has been selected
  @@ -363,6 +363,8 @@ declare namespace FilePicker {
  user: Game['user'];
  }
  + type DataSource = 'data' | 'public' | 's3';
  +
  interface Dir {
  name: string;
  path: string;
  @@ -395,7 +397,7 @@ declare namespace FilePicker {
  /**
  * A current file source in "data", "public", or "s3"
  */
  - activeSource?: FilePicker['activeSource'];
  + activeSource?: DataSource;
  /**
  * A type of file to target, in "audio", "image", "video", "imagevideo" or "folder"
  