add default credentials

app.py

@@ -16,15 +16,15 @@ import streamlit as st
 st.title("Digital Pipette Control Panel")
 
 # MQTT Configuration
-HIVEMQ_HOST = st.text_input("Enter your HiveMQ host:", "", type="password")
-HIVEMQ_USERNAME = st.text_input("Enter your HiveMQ username:", "")
-HIVEMQ_PASSWORD = st.text_input("Enter your HiveMQ password:", "", type="password")
+HIVEMQ_HOST = st.text_input("Enter your HiveMQ host:", "248cc294c37642359297f75b7b023374.s2.eu.hivemq.cloud", type="password")
+HIVEMQ_USERNAME = st.text_input("Enter your HiveMQ username:", "sgbaird")
+HIVEMQ_PASSWORD = st.text_input("Enter your HiveMQ password:", "D.Pq5gYtejYbU#L", type="password")
 PORT = st.number_input(
     "Enter the port number:", min_value=1, max_value=65535, value=8883
 )
 
 # User input for the Pico ID
-pico_id = st.text_input("Enter your Pico ID:", "", type="password")
+pico_id = st.text_input("Enter your Pico ID:", "test-pipette", type="password")
 
 # Slider for position value
 position = st.slider(