Update weather API endpoint and enhance image generation message for clarity

app.py

@@ -242,7 +242,7 @@ async def whatsapp_webhook(request: Request):
     if low.startswith("/weather "):
         loc = body[len("/weather "):].strip().replace(" ", "+")
         try:
-            w = requests.get(f"http://wttr.in/{loc}?format=3", timeout=5).text
+            w = requests.get(f"http://sl.wttr.in/{loc}?format=4", timeout=5).text
             send_message(mid, chat, w)
         except:
             send_message(mid, chat, "Could not fetch weather.")
@@ -348,7 +348,7 @@ async def whatsapp_webhook(request: Request):
         if not prompt:
             send_message(mid, chat, "Use `/imagine <prompt>`")
         else:
-            send_message(mid, chat, "✨ Generating image...")
+            send_message(mid, chat, "✨ Your image is being generated. \nPlease wait...")
             task_queue.put({
                 "type": "image",
                 "message_id": mid,