alacritty cyan color, commands.sh: bar font and height, change emacs theme and indentation

.config/polybar/config

@@ -11,8 +11,8 @@ modules-left = bspwm xwindow
 modules-right = date
 wm-restack = bspwm
 enable-ipc = true
-font-0 = Iosevka:pixelsize=23:antialias=true:autohint=true;5
-height = 40
+font-0 = ${xrdb:polybar.font:Iosevka:pixelsize=23:antialias=true:autohint=true;5}
+height = ${xrdb:polybar.height:40}
 background = ${colors.background}
 foreground = ${colors.foreground}
 padding-left = 2