ruffle: update to ruffle 2023-05-13 release, later versions interfere… (#181)

* ruffle:
- switch to ruffle 2023-05-13 release, later versions interfere with loading, it seems (see #180)
fixes #180

* add ruffle toggling options
- disable by default in embed mode, can be enabled with 'useruffle' attr
- enable by default in standalone, can be disabled with 'skipruffle' attr
- fixes #182

* update CHANGES for 1.8.1

src/embed.js

@@ -43,6 +43,7 @@ class Embed extends LitElement
     this.noSandbox = null;
     this.logo = rwpLogo;
     this.loading = "";
+    this.useRuffle = false;
   }
 
   static setDefaultReplayFile(replayfile) {
@@ -88,6 +89,8 @@ class Embed extends LitElement
       requireSubdomainIframe: {type: Boolean},
 
       loading: { type: String },
+
+      useRuffle: { type: Boolean },
     };
   }
 
@@ -252,6 +255,10 @@ class Embed extends LitElement
         params.swName = this.swName;
       }
 
+      if (this.useRuffle) {
+        params.ruffle = "1";
+      }
+
       this.paramString = new URLSearchParams(params).toString();
 
       this.hashString = new URLSearchParams({