Fix uint8_t in haltError (was whole seconds now ms)

Author: tyeth

src/Wippersnapper.cpp

@@ -2504,9 +2504,9 @@ void Wippersnapper::runNetFSM() {
 void Wippersnapper::haltError(String error, ws_led_status_t ledStatusColor,
                               uint8_t seconds_until_reboot) {
 #ifdef ARDUINO_ARCH_ESP8266
-  uint8_t wdt_timeout_ms = 3200;
+  uint16_t wdt_timeout_ms = 3200;
 #else
-  uint8_t wdt_timeout_ms = 5000;
+  uint16_t wdt_timeout_ms = 5000;
 #endif
   int seconds_until_wdt_enable =
       seconds_until_reboot - (int)(wdt_timeout_ms / 1000);