Fix: Use rawurlencode to encode spaces correctly

Fix of the first fix. PHP's urlencode uses '+' to encode spaces which
is not valid in the url path section. The rawurlencode function is the
PHP function that does it right.

drivers/GoogleAuthenticatorDriver.php

@@ -143,7 +143,7 @@ public function getQrCodeSecretKeyFile($requirePinCode = false)
         }
 
         return $this->renderFile([
-            'qrCodeText' => 'otpauth://totp/' . Yii::$app->request->hostName . ':' . urlencode(TwofaHelper::getAccountName()) . '?secret=' . $secret . '&issuer=' . Yii::$app->request->hostName,
+            'qrCodeText' => 'otpauth://totp/' . Yii::$app->request->hostName . ':' . rawurlencode(TwofaHelper::getAccountName()) . '?secret=' . $secret . '&issuer=' . Yii::$app->request->hostName,
             'secret' => $secret,
             'requirePinCode' => $requirePinCode,
         ], ['suffix' => 'Code']);