Method cleanup

src/dev_server.rs:374–380

(&mut self)

    }

    fn cleanup(&mut self) {
        if let Some(handle) = self.file_watcher_thread.take() {
            drop(self.watcher.take());
            drop(self.watcher_tx.take());
            let _ = handle.join();
        }
    }

    pub fn set_platform(&mut self, platform: Platform) {
        self.target_platform = platform;