Update app.py

app.py

@@ -28,8 +28,7 @@ if "appliance_data" not in st.session_state:
     st.session_state.appliance_data = []
 
 # Groq Client Setup
-api_key = os.getenv("EnergyGuru_PowerCalc")
-client = Groq(api_key="api_key")
+client = Groq(api_key=os.getenv("EnergyGuru_PowerCalc"))
 
 # App Configuration
 st.title("EnergyGuru_PowerCalc: AI DRIVEN BILL & CARBON FOOTPRINT TRACKER")