Refactor WiFi connection handling: move PIN definitions, enhance connection logic, and integrate MQTT initialization in setup

hardware/include/WifiConnection.hpp

@@ -6,4 +6,10 @@
 #define SSID "DIGIFIBRA-D2ys"
 #define WIFI_PASSWORD "4EEATsyTcZ"
 
-int WiFi_Init();
+#define PIN_R 12
+#define PIN_G 13
+#define PIN_B 14
+
+void WiFi_Init();
+void WiFi_Handle();
+bool WiFi_IsConnected();