Add comps

src/excalidraw-app/components/PlusAppLink.tsx

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+import { COOKIES } from "../../constants";
+
+export const isExcalidrawPlusSignedUser = document.cookie.includes(
+  COOKIES.AUTH_STATE_COOKIE,
+);
+
+const PlusAppLink = () => {
+  return (
+    <a
+      href={`${process.env.REACT_APP_PLUS_APP}/#excalidraw-redirect`}
+      target="_blank"
+      rel="noreferrer"
+      className="plus-button"
+    >
+      Go to Excalidraw+
+    </a>
+  );
+};
+
+export default PlusAppLink;

src/excalidraw-app/components/PlusLPLink.tsx

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+const PlusLPLink = () => {
+  return (
+    <p style={{ direction: "ltr", unicodeBidi: "embed" }}>
+      Introducing Excalidraw+
+      <br />
+      <a
+        href="https://plus.excalidraw.com/plus?utm_source=excalidraw&utm_medium=banner&utm_campaign=launch"
+        target="_blank"
+        rel="noreferrer"
+      >
+        Try out now!
+      </a>
+    </p>
+  );
+};
+
+export default PlusLPLink;