feat: support wikipedia embeds and allow scrolling

packages/element/src/embeddable.ts

@@ -147,6 +147,8 @@ const ALLOWED_DOMAINS = new Set([
   "giphy.com",
   "reddit.com",
   "forms.microsoft.com",
+  "wikipedia.org",
+  "*.wikipedia.org",
 ]);
 
 const ALLOW_SAME_ORIGIN = new Set([

packages/excalidraw/components/App.tsx

@@ -1840,8 +1840,6 @@ class App extends React.Component<AppProps, AppState> {
                         src={
                           src?.type !== "document" ? src?.link ?? "" : undefined
                         }
-                        // https://stackoverflow.com/q/18470015
-                        scrolling="no"
                         referrerPolicy="no-referrer-when-downgrade"
                         title="Excalidraw Embedded Content"
                         allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"