Fix syntax for EXTRA_FLAGS variable in entrypoint.sh (#65)

Since I could not set up the remote access falg to 1, I changed a potential bug that solved the issue and let me use remote access. Using Ubuntu Server 24.04

Author: Javiju555

entrypoint.sh

@@ -8,5 +8,5 @@ fi
 exec \
 	/app/start-engine \
 	--client-console \
-	"$EXTRA_FLAGS" \
+	$EXTRA_FLAGS \
 	"$@"