Prefer using the available convenient method for profile option

src/EditProfileDialog.cpp

@@ -301,7 +301,7 @@ void EditProfileDialog::showEnvironmentEditor()
     QWeakPointer<KDialog> dialog = new KDialog(this);
     KTextEdit* edit = new KTextEdit(dialog.data());
 
-    QStringList currentEnvironment = profile->property<QStringList>(Profile::Environment);
+    QStringList currentEnvironment = profile->environment();
 
     edit->setPlainText(currentEnvironment.join("\n"));
     edit->setToolTip(i18n("One environment variable per line"));

src/SessionManager.cpp

@@ -464,7 +464,7 @@ void SessionManager::applyProfile(Session* session, const Profile::Ptr profile ,
     if (apply.shouldApply(Profile::Environment)) {
         // add environment variable containing home directory of current profile
         // (if specified)
-        QStringList environment = profile->property<QStringList>(Profile::Environment);
+        QStringList environment = profile->environment();
         environment << QString("PROFILEHOME=%1").arg(profile->defaultWorkingDirectory());
         environment << QString("KONSOLE_PROFILE_NAME=%1").arg(profile->name());