add support for cohere (#1849)

### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

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

---------

Co-authored-by: Zhedong Cen <cenzhedong2@126.com>

web/src/pages/user-setting/setting-model/constant.ts

@@ -22,7 +22,8 @@ export const IconMap = {
   StepFun: 'stepfun',
   NVIDIA:'nvidia',
   'LM-Studio':'lm-studio',
-  'OpenAI-API-Compatible':'openai-api'
+  'OpenAI-API-Compatible':'openai-api',
+  'cohere':'cohere'
 };
 
 export const BedrockRegionList = [