fixed build errors and warnings, updated libraries

platformio.ini

@@ -9,14 +9,16 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [env:esp32doit-devkit-v1]
-platform = espressif32
+platform = espressif32@3.5.0
 board = esp32doit-devkit-v1
+
 framework = arduino
 monitor_speed = 115200
 lib_deps = 
 	me-no-dev/ESP Async WebServer@^1.2.3
-	ayushsharma82/AsyncElegantOTA@^2.2.6
+	ayushsharma82/AsyncElegantOTA@^2.2.7
 	knolleary/PubSubClient@^2.8
-	adafruit/Adafruit Fingerprint Sensor Library@^2.0.7
+	adafruit/Adafruit Fingerprint Sensor Library@^2.1.0
 	intrbiz/Crypto@^1.0.0
-lib_ldf_mode = deep
+lib_ldf_mode = deep+
+#build_flags = -D CUSTOM_GPIOS 		#uncomment this line if you'd like to enable customgpio support

src/SettingsManager.cpp

@@ -8,6 +8,7 @@ bool SettingsManager::loadWifiSettings() {
         wifiSettings.password = preferences.getString("password", String(""));
         wifiSettings.hostname = preferences.getString("hostname", String("FingerprintDoorbell"));
         preferences.end();
+        return true;
     } else {
         return false;
     }
@@ -25,6 +26,7 @@ bool SettingsManager::loadAppSettings() {
         appSettings.sensorPairingCode = preferences.getString("pairingCode", "");
         appSettings.sensorPairingValid = preferences.getBool("pairingValid", false);
         preferences.end();
+        return true;
     } else {
         return false;
     }