add i3 and polybar conf, add new rofi logout screen

polybar/scripts/network_speed.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+NETWORK=$(awk '{if(l1){print $2-l1,$10-l2} else{l1=$2; l2=$10;}}' <(grep wlo1 /proc/net/dev) <(sleep 1; grep wlo1 /proc/net/dev))
+UP=$(echo $NETWORK | awk '{ print $2 }')
+DOWN=$(echo $NETWORK | awk '{ print $1 }')
+UP=$(echo "scale=2 ; $UP / 1048576" | bc)
+DOWN=$(echo "scale=2 ; $DOWN / 1048576" | bc)
+
+echo " $DOWN MB/s  $UP MB/s"