s/led_green/led_status/g because not all status leds are green :)

include/main.h

@@ -19,7 +19,7 @@ struct channel_t {
   double button_last_change;
 };
 
-void led_green_blink();
+void led_status_blink();
 
 bool channel_init(const char *fn);
 uint8_t channel_gpio_by_idx(int idx);