Added support for Baichuan LLM (#934)

### What problem does this PR solve?

- Added support for Baichuan LLM

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

Co-authored-by: 海贼宅 <stu_xyx@163.com>

web/src/assets/svg/llm/baichuan.svg

@@ -0,0 +1,28 @@
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web/src/pages/user-setting/setting-model/index.tsx

@@ -55,6 +55,7 @@ const IconMap = {
   Xinference: 'xinference',
   DeepSeek: 'deepseek',
   VolcEngine: 'volc_engine',
+  BaiChuan: 'baichuan',
 };
 
 const LlmIcon = ({ name }: { name: string }) => {