remove stats.js reference

Author: luizbills

public/preview.html

@@ -73,7 +73,6 @@
       addEventListener("unhandledrejection", handleError);
     </script>
 
-    <script src="/stats.js"></script>
     <script src="/litecanvas.js"></script>
 
     <script>

public/sw.js

@@ -1,5 +1,5 @@
 const cacheName = "luizbills.litecanvas-editor-v1";
-const version = "2.50.0";
+const version = "2.50.1";
 
 const precacheResources = [
   "/",