feat: mobile map mode (#9717)

Signed-off-by: fufesou <linlong1266@gmail.com>

src/flutter_ffi.rs

@@ -222,6 +222,10 @@ pub fn session_get_enable_trusted_devices(session_id: SessionID) -> SyncReturn<b
 
 pub fn session_close(session_id: SessionID) {
     if let Some(session) = sessions::remove_session_by_session_id(&session_id) {
+        // `release_remote_keys` is not required for mobile platforms in common cases.
+        // But we still call it to make the code more stable.
+        #[cfg(any(target_os = "android", target_os = "ios"))]
+        crate::keyboard::release_remote_keys("map");
         session.close_event_stream(session_id);
         session.close();
     }