QDS-11424 Update user projects automatically

This MR brings the following features;

• New settings page
• A new settings option to fetch the user projects in each 10 seconds

src/backend.cpp

@@ -73,9 +73,14 @@ void Backend::initialize()
     }
 
     // Check if updateInBackground is enabled
-    // const bool updateInBackground = settings.value("system/updateInBackground").toBool();
-    const bool updateInBackground = true;
-    if (updateInBackground) {
+    updateInBackground(settings.value("system/updateInBackground").toBool());
+    qDebug() << "Initialization complete";
+}
+
+void Backend::updateInBackground(const bool &enabled)
+{
+    QSettings().setValue("system/updateInBackground", enabled);
+    if (enabled) {
         qDebug() << "Update in background is enabled";
         m_backgroundTimer.setInterval(1000 * 10);
         connect(&m_backgroundTimer, &QTimer::timeout, this, [&] {
@@ -92,10 +97,29 @@ void Backend::initialize()
             updateUserProjectList();
         });
         m_backgroundTimer.start();
-    } else
+    } else {
         qDebug() << "Update in background is disabled";
+        m_backgroundTimer.stop();
+    }
+}
 
-    qDebug() << "Initialization complete";
+void Backend::cacheDemoProjects(const bool &enabled)
+{
+    QSettings().setValue("system/cacheDemoProjects", enabled);
+    if (enabled) {
+        qDebug() << "Caching demo projects is enabled";
+    } else {
+        qDebug() << "Caching demo projects is disabled";
+    }
+}
+void Backend::cacheUserProjects(const bool &enabled)
+{
+    QSettings().setValue("system/cacheUserProjects", enabled);
+    if (enabled) {
+        qDebug() << "Caching user projects is enabled";
+    } else {
+        qDebug() << "Caching user projects is disabled";
+    }
 }
 
 void Backend::updatePopup(const QString &text, bool indeterminate)
@@ -345,6 +369,16 @@ void Backend::updateUserProjectList()
     m_serviceConnector.reset(new ServiceConnector);
     QJsonArray projectList = m_serviceConnector->fetchUserProjectList(m_userHash);
 
+    if (projectList.isEmpty()) {
+        qCritical("Could not fetch available project list");
+        return;
+    }
+
+    if (projectList == m_projectListArray) {
+        qDebug("No new projects available");
+        return;
+    }
+    m_projectListArray = projectList;
     m_projectList.clear();
     qDebug("List of available projects fetched:");
     for (const auto &project : projectList) {