misc: minor changes for GNU/Linux compilation

Gitlab: #558

Change-Id: I7060e4a2e862d1a771fbf8a6b71fce2910b59c30

src/mainapplication.h

@@ -22,6 +22,7 @@
 
 #include "splashscreen.h"
 
+#include <memory>
 #include <QApplication>
 #include <QFile>
 

src/webchathelpers.cpp

@@ -38,7 +38,7 @@ buildInteractionJson(lrc::api::ConversationModel& conversationModel,
     interactionObject.insert("sender_contact_method", QJsonValue(sender));
     interactionObject.insert("timestamp", QJsonValue(timestamp));
     interactionObject.insert("direction", QJsonValue(direction));
-    interactionObject.insert("duration", QJsonValue(interaction.duration));
+    interactionObject.insert("duration", QJsonValue(static_cast<int>(interaction.duration)));
 
     switch (interaction.type)
     {
@@ -140,4 +140,4 @@ interactionsToJsonArrayObject(lrc::api::ConversationModel& conversationModel,
         }
     }
     return QString(QJsonDocument(array).toJson(QJsonDocument::Compact));
-}
\ No newline at end of file
+}