Add tldraw embed (#3439)

* Test Tldraw embed

* Correct regex

* Correct alt for image

* Resize image to 120x120

shared/editor/embeds/Tldraw.tsx

@@ -0,0 +1,19 @@
+import * as React from "react";
+import Frame from "../components/Frame";
+import { EmbedProps as Props } from ".";
+
+function Tldraw(props: Props) {
+  return (
+    <Frame
+      {...props}
+      src={props.attrs.href}
+      title="Tldraw.com Embed"
+      referrerPolicy="origin"
+      border
+    />
+  );
+}
+
+Tldraw.ENABLED = [new RegExp("https?://www.tldraw.com/r/(.*)$")];
+
+export default Tldraw;

shared/editor/embeds/index.tsx

@@ -35,6 +35,7 @@ import Otter from "./Otter";
 import Pitch from "./Pitch";
 import Prezi from "./Prezi";
 import Spotify from "./Spotify";
+import Tldraw from "./Tldraw";
 import Trello from "./Trello";
 import Typeform from "./Typeform";
 import Vimeo from "./Vimeo";
@@ -317,6 +318,13 @@ const embeds: EmbedDescriptor[] = [
     component: Spotify,
     matcher: matcher(Spotify),
   },
+  {
+    title: "Tldraw",
+    keywords: "draw schematics diagrams",
+    icon: () => <Img src="/images/tldraw.png" alt="Tldraw" />,
+    component: Tldraw,
+    matcher: matcher(Tldraw),
+  },
   {
     title: "Trello",
     keywords: "kanban",