Fix 2 bugs:

1. The OLLAMA_HOST parameter passed by GUI is not set to ollama.Client. As a result, the code will request localhost even if the OLLAMA_HOST is specified by GUI or ENV.
2. Dockerfile will give out: docker启动报错libgthread-2.0.so.0: cannot open shared object file: No such file or directory（v1.9.0） #521 Error.

I fixed those with minor revisions.

修俩小bug：

1. OLLAMA_HOST这个变量在GUI里以及环境变量里面指定了都没用，因为ollama.Client里面没有传进去
2. Dockerfile构建的docker存在依赖错误，dockerhub里面的docker也有这个问题，已经更新dockerfile