Preserve typing events in iOS FFI

crates/tele-core/src/session.rs

@@ -813,6 +813,18 @@ mod tests {
             CoreNetworkState::from(&NetworkState::WaitingForNetwork),
             CoreNetworkState::WaitingForNetwork
         );
+        assert_eq!(
+            CoreTypingState::Typing {
+                chat_id: ChatId::new(42),
+                user_id: UserId::new(7),
+                text: "typing".to_string(),
+            },
+            CoreTypingState::Typing {
+                chat_id: ChatId::new(42),
+                user_id: UserId::new(7),
+                text: "typing".to_string(),
+            }
+        );
     }
 
     #[tokio::test]