Fix render.yaml format and line endings

Author: Uttam Singh

render.yaml

@@ -28,4 +28,4 @@ services:
     startCommand: npx serve -s frontend/dist
     envVars:
       - key: VITE_API_URL
-        value: https://fat-eibl-backend.onrender.com
+        value: https://fat-eibl-backend.onrender.com