Fix back snippet url

Playground/js/frame.js

@@ -1,5 +1,5 @@
 (function() {
-    var snippetUrl = "https://babylonsnippetsv3.azurewebsites.net";
+    var snippetUrl = "https://snippet.babylonjs.com";
     var currentSnippetToken;
     var engine;
     var fpsLabel = document.getElementById("fpsLabel");

Playground/js/index.js

@@ -159,7 +159,7 @@ function showError(errorMessage, errorEvent) {
             markDirty();
         });
 
-        var snippetV3Url = "https://babylonsnippetsv3.azurewebsites.net"
+        var snippetV3Url = "https://snippet.babylonjs.com"
         var currentSnippetToken;
         var currentSnippetTitle = null;
         var currentSnippetDescription = null;