waybar: add mouse baterry indicator

scripts/print-battery-icon

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+set -e
+
+if test $# -ne 1; then
+    echo "Usage $0" >&2
+    exit 1
+fi
+CAPACITY="$1"
+
+if test "$CAPACITY" -ge 90; then
+    echo -n '󰁹'
+elif test "$CAPACITY" -ge 90; then
+    echo -n '󰂂'
+elif test "$CAPACITY" -ge 80; then
+    echo -n '󰂁'
+elif test "$CAPACITY" -ge 70; then
+    echo -n '󰂀'
+elif test "$CAPACITY" -ge 60; then
+    echo -n '󰁿'
+elif test "$CAPACITY" -ge 50; then
+    echo -n '󰁾'
+elif test "$CAPACITY" -ge 40; then
+    echo -n '󰁽'
+elif test "$CAPACITY" -ge 30; then
+    echo -n '󰁼'
+elif test "$CAPACITY" -ge 20; then
+    echo -n '󰁻'
+elif test "$CAPACITY" -ge 10; then
+    echo -n '󰁺'
+else
+    echo -n '󰂎'
+fi