add copy function

crates/chat/src/message.rs

@@ -28,7 +28,7 @@ impl NewMessage {
 /// Trash message.
 #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
 pub struct FailedMessage {
-    pub raw_event: String,
+    pub raw_event: SharedString,
     pub reason: SharedString,
 }
 
@@ -38,7 +38,7 @@ impl FailedMessage {
         T: Into<SharedString>,
     {
         Self {
-            raw_event: event.as_json(),
+            raw_event: SharedString::from(event.as_json()),
             reason: reason.into(),
         }
     }