Fix typos found by codespell (#234)

GPClient/gatewayauthenticatorparams.cpp

@@ -64,4 +64,3 @@ void GatewayAuthenticatorParams::setInputStr(const QString &inputStr)
 {
     m_inputStr = inputStr;
 }
-

GPClient/gpclient.cpp

@@ -339,7 +339,7 @@ void GPClient::onPortalFail(const QString &msg)
 
 void GPClient::tryGatewayLogin()
 {
-    LOGI << "Try to preform login on the the gateway interface...";
+    LOGI << "Try to perform login on the the gateway interface...";
 
     // Treat the portal input as the gateway address
     GPGateway g;

GPClient/gphelper.cpp

@@ -172,7 +172,7 @@ bool gpclient::helper::settings::secureGet(const QString &key, QString &value) {
     if ( job.error() ) {
         return false;
     }
-    
+
     value = pw;
     return true;
-}
+}

GPClient/portalauthenticator.cpp

@@ -32,7 +32,7 @@ void PortalAuthenticator::authenticate()
 {
     attempts++;
 
-    LOGI << QString("(%1/%2) attempts").arg(attempts).arg(MAX_ATTEMPTS) << ", preform portal prelogin at " << preloginUrl;
+    LOGI << QString("(%1/%2) attempts").arg(attempts).arg(MAX_ATTEMPTS) << ", perform portal prelogin at " << preloginUrl;
 
     QNetworkReply *reply = createRequest(preloginUrl);
     connect(reply, &QNetworkReply::finished, this, &PortalAuthenticator::onPreloginFinished);

GPClient/portalconfigresponse.cpp

@@ -172,4 +172,3 @@ void PortalConfigResponse::setPrelogonUserAuthCookie(const QString cookie)
 {
     m_prelogonAuthCookie = cookie;
 }
-

GPClient/vpn_json.cpp

@@ -1,5 +1,5 @@
 #include "vpn_json.h"
-#include <QTextStream> 
+#include <QTextStream>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QJsonArray>