#35583 [Bug]: MCP Servers documentation uses PROXY_BASE_URL instead of LITELLM_UI_API_DOC_BASE_URL
### Check for existing issues
- [x] I have searched the existing issues and checked that my issue is not a duplicate.
### What happened?
UI AI GATEWAY -> MCP Servers documentation -> shows PROXY_BASE_URL instead of LITELLM_UI_API_DOC_BASE_URL
### Steps to Reproduce
1. set PROXY_BASE_URL 2. set LITELLM_UI_API_DOC_BASE_URL 3. access /ui/mcp-servers/ and 'Connect' tab to see the wrong URL
### Relevant log output
```shell
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### What part of LiteLLM is this about?
UI Dashboard
### What LiteLLM version are you on ?
v1.94.0
### Twitter / LinkedIn details
_No response_