Hide network status when disconnected

Avoid warning indicators to be showed all the time.

Install/Templates/i3status/config

@@ -31,13 +31,13 @@ ipv6 {
 
 wireless _first_ {
         format_up = "⌔ %essid%quality %bitrate %ip"
-        format_down = "⌔×"
+        format_down = ""
 }
 
 ethernet _first_ {
         # if you use %speed, i3status requires root privileges
         format_up = "⇵ %speed %ip"
-        format_down = "⇵×"
+        format_down = ""
 }
 
 battery 0 {