fix room not set, fix cloudflare prerender

svelte.config.js

@@ -16,7 +16,7 @@ const config = {
 			// See below for an explanation of these options
 			routes: {
 				include: ['/*'],
-				exclude: ['<all>']
+				exclude: ['<files>', '<prerendereed>']
 			}
 		})
 	}