feat: the frontend part of mcp (#22131)

Co-authored-by: jZonG <jzongcode@gmail.com>
Co-authored-by: Novice <novice12185727@gmail.com>
Co-authored-by: nite-knite <nkCoding@gmail.com>
Co-authored-by: Hanqing Zhao <sherry9277@gmail.com>

web/app/components/workflow/index.tsx

@@ -234,6 +234,7 @@ export const Workflow: FC<WorkflowProps> = memo(({
     handleFetchAllTools('builtin')
     handleFetchAllTools('custom')
     handleFetchAllTools('workflow')
+    handleFetchAllTools('mcp')
   }, [handleFetchAllTools])
 
   const {