Update run file to Waitress server

to update with the recent changes from the project:
- Change Flask server with waitress server
- Added Basic user Authentication option
- Added server Address option

root/etc/services.d/whooglesearch/run

@@ -1,8 +1,19 @@
 #!/usr/bin/with-contenv bash
 
-WEB_PORT=${WEB_PORT:-5000}
+ADDRESS=${ADDRESS:-0.0.0.0}
+EXPOSE_PORT=${EXPOSE_PORT:-5000}
+USER=${USER}
+PASSWORD=${PASSWORD}
 
 cd /
 
-exec \
-	s6-setuidgid abc flask run --host="0.0.0.0" --port="${WEB_PORT}"
+# Create User Authentication if specified
+if [ -z "${USER}" ] && [ -z "${PASSWORD}" ]; then
+    echo "No User and Password Will be set for Basic authentication"
+	exec \
+	s6-setuidgid abc python3 -um app --host "${ADDRESS}" --port "${EXPOSE_PORT}"
+else
+    echo "Setting Up Basic Authentication with Username="$USER" Password="$PASSWORD""
+	exec \
+	s6-setuidgid abc python3 -um app --host "${ADDRESS}" --port "${EXPOSE_PORT}" --userpass "$USER":"$PASSWORD"
+fi