update countdown timer to keep remaining time on one line

bash_scripts/countdown_timer.sh

@@ -5,12 +5,13 @@ PLAYER=mpv
 FILE="/usr/share/sounds/freedesktop/stereo/message.oga"
 
 seconds=${1:-180}
+clear
 echo "Counting down from $seconds"
 Msg=${2}
 
 let "i = $seconds"
 while [ $i -gt 0 ]; do
-	echo $i
+	echo -ne "\r$i        "
 	let i--
 	sleep 1
 done