add unauthenticated message on wallet page

app/javascript/modules.d.ts

@@ -7,6 +7,11 @@ declare module "*.png" {
   export default png;
 }
 
+declare module "*.svg" {
+  const svg: string;
+  export default svg;
+}
+
 declare module "babel-plugin-relay/macro" {
   export { graphql } from "react-relay";
 }