Add existing to tracked

node_modules/nosleep.js/nosleep.d.ts

@@ -0,0 +1,22 @@
+declare namespace nosleep {
+  class NoSleep {
+    constructor();
+
+    get isEnabled(): boolean;
+    enable(): Promise<any>;
+    disable(): void;
+    _addSourceToVideo(
+      element: HTMLElement,
+      type: string,
+      dataURI: string
+    ): void;
+  }
+}
+
+declare global {
+  interface Window {
+    NoSleep: typeof nosleep.NoSleep;
+  }
+}
+
+export default nosleep.NoSleep;