Merge pull request #45 from github/types-ts-add-window-declaration

Add TS window declaration for DetailsDialogElement

Author: keithamus

index.d.ts

@@ -1,3 +1,9 @@
 export default class DetailsDialogElement extends HTMLElement {
   toggle(open: boolean): void;
 }
+
+declare global {
+  interface Window {
+    DetailsDialogElement: typeof DetailsDialogElement
+  }
+}