add run.sh for easy launching, also waits for port to be open before launching browser

run.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+echo "Starting the application..."
+
+PORT=5050
+
+cleanup() {
+    echo "Stopping the application..."
+    pkill -f "panel serve main.py"
+}
+
+trap cleanup EXIT
+
+poetry run panel serve main.py --port $PORT &
+
+# if 'nc' is available, use it to check if the port is open
+if ! command -v nc &> /dev/null
+then
+    echo "'nc' command could not be found, please install it for better port checking."
+    sleep 2
+else
+    # wait until port is open
+    while ! nc -z localhost $PORT; do   
+        sleep 0.5 
+    done
+fi
+
+poetry run python -m webbrowser http://localhost:$PORT
+
+# wait until user kills the process (by hitting ctrl+c or otherwise)
+wait