fix wifi icon

src/main.cpp

@@ -150,7 +150,7 @@ void setup()
     Serial.println("WiFi connected");
     Serial.println("IP address: ");
     Serial.println(WiFi.localIP());
-    displayIcoPartial(ico_wifi16, display.width()-20, 0, ico_wifi_width, ico_wifi_height);
+    displayIcoPartial(ico_wifi16, display.width()-20, 0, ico_wifi16_width, ico_wifi16_height);
   }
 
   ESP_LOGD(TAG, "trying to fetch over-the-air update");