message: Add undefined to return type of FilePicker.browse
diff: @@ -161,7 +161,7 @@ declare class FilePicker<P extends FilePicker.Options = FilePicker.Options> exte
  * @param target - The target within the currently active source location.
  * @param options - Browsing options (default: `{}`)
  */
  - browse(target?: string, options?: FilePicker.BrowsingOptions): Promise<FilePicker.BrowseResult>;
  + browse(target?: string, options?: FilePicker.BrowsingOptions): Promise<FilePicker.BrowseResult | undefined>;
  /**
  * Browse files for a certain directory location
  @@ -175,7 +175,7 @@ declare class FilePicker<P extends FilePicker.Options = FilePicker.Options> exte
  source: FilePicker.DataSource,
  target?: string,
  options?: FilePicker.BrowsingOptions
  - ): Promise<FilePicker.BrowseResult>;
  + ): Promise<FilePicker.BrowseResult | undefined>;
  /**
  * Configure metadata settings regarding a certain file system path
  @@ -207,7 +207,7 @@ declare class FilePicker<P extends FilePicker.Options = FilePicker.Options> exte
  protected static _manageFiles(
  data: FilePicker.ManageData,
  options?: Record<string, unknown>
  - ): Promise<Record<string, unknown>>;
  + ): Promise<Record<string, unknown> | undefined>;
  /**
  * Dispatch a POST request to the server containing a directory path and a file to upload
  