Emit ChatEphemeralTimerModified when user changes the timer

src/ephemeral.rs

@@ -176,6 +176,11 @@ impl ChatId {
                 paramsv![timer, self],
             )
             .await?;
+
+        context.emit_event(Event::ChatEphemeralTimerModified {
+            chat_id: self,
+            timer: timer.to_u32(),
+        });
         Ok(())
     }