Fix ip detector

reStream.sh

@@ -131,7 +131,7 @@ trap exit_rm EXIT INT HUP
 # SSH_CONNECTION is a variable on reMarkable => ssh '' instead of ssh ""
 # shellcheck disable=SC2016
 remarkable_ip() {
-    ssh_cmd 'echo $SSH_CONNECTION' | cut -d\  -f3
+    ssh_cmd 'echo $SSH_CONNECTION' | cut -d\  -f3 | cut -d":" -f4
 }
 
 # check if we are able to reach the remarkable