Remote rendering configuration

### 📝 Description of the feature

Create a configuration of VISOR that runs in remote rendering. The user will be able when initializing VISOR to determine if they want a client or a remote-rendering session. In the latter case, VISOR will spin off a Paraview session on the backend and display it to the user as if it were a viewer.

The UI looks very similar. The features available are basically the same, with differences documented.

### Acceptance Criteria

User can start a remote rendering session of VISOR. It looks and feels very similar to the client version of VISOR.

### 💵 Business Value

This configuration will open up VISOR to be used in situations where large datasets need to be loaded.

### 🔗 Useful links and references

_No response_

未指定文件或测试；请先定位 VISOR 的初始化流程和现有的客户端渲染入口点。梳理会话类型的选择位置，以及后端 ParaView 会话的连接位置，然后验证是否可以启动远程会话，并呈现文档所述的类似客户端的 UI。

由索引模型根据 Issue 内容生成。