fix: add icon to MiniMax and Mistral #1353 (#1367)

### What problem does this PR solve?

fix: add icon to MiniMax  and Mistral #1353
### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/user-setting/setting-model/index.tsx

@@ -57,6 +57,8 @@ const IconMap = {
   VolcEngine: 'volc_engine',
   BaiChuan: 'baichuan',
   Jina: 'jina',
+  MiniMax: 'minimax',
+  Mistral: 'mistral',
 };
 
 const LlmIcon = ({ name }: { name: string }) => {