fix(ui): Proxy avatars endpoint in dev mode

Signed-off-by: Richard Palethorpe <io@richiejp.com>

webui/react-ui/vite.config.js

@@ -30,6 +30,7 @@ export default defineConfig(({ mode }) => {
         '/status': backendUrl,
         '/action': backendUrl,
         '/actions': backendUrl,
+        '/avatars': backendUrl
       }
     }
   }