fix: update error response status and improve success message handling in weather fetching

backend/routes/api.js

@@ -14,7 +14,7 @@ router.get("/fetchWeather", async (req, res) => {
       `https://api.openweathermap.org/geo/1.0/direct?q=${city}&appid=${apiKey}`
     );
     if (!locationResponse.ok) {
-      return res.status(404).json({
+      return res.status(500).json({
         error: "Error fetching location data. (Error: x32)",
         success: "false",
         data: null,