Remove literals (#1114)

https://tldraw.com -> window.location.origin

apps/www/pages/r/[id].tsx

@@ -17,7 +17,7 @@ interface RoomProps {
 
 export default function Room({ id }: RoomProps) {
   if (typeof window !== 'undefined' && window.self !== window.top) {
-    return <IFrameWarning url={`https://tldraw.com/r/${id}`} />
+    return <IFrameWarning url={`${window.location.origin}/r/${id}`} />
   }
 
   return (

packages/tldraw/src/components/TopPanel/MultiplayerMenu/MultiplayerMenu.tsx

@@ -130,7 +130,7 @@ export const MultiplayerMenu = function MultiplayerMenu() {
           id="TD-Multiplayer-CreateMultiplayerProject"
           onClick={handleCreateMultiplayerProject}
         >
-          <a href="https://tldraw.com/r">
+          <a href={`${window.location.origin}/r`}>
             <FormattedMessage id="create.multiplayer.project" />
           </a>
         </DMItem>