[TODO] Fix Client Renderer and make it a standalone backend #16
Description
我们希望客户端渲染器能作为一个独立的后端存在，而非像现在这样四处穿插在插件各处。
同时在独立为后端后修复它的NBT同步。
We hope the Client Renderer can exist as a standalone backend like the Server Backend, rather than being everywhere in the plugin.
Also need to fix NBT syncing after it becomes a standalone backend.