Upgrade Futuniuniu.app to v2.16.354, and linking with Chinese app name

I took a closer look, and your usage does make sense. Forget about `tags` and keep `:target`. However, please add

```ruby
# Renamed for consistency: app name is different in the Finder and in a shell.
# Original discussion: https://github.com/caskroom/homebrew-cask/pull/7435
```

right above the `app` line.