fix(leak): Fix few memory leaks

src/widget/form/chatform.cpp

@@ -219,6 +219,7 @@ ChatForm::~ChatForm()
     Translator::unregister(this);
     delete netcam;
     netcam = nullptr;
+    delete offlineEngine;
 }
 
 void ChatForm::setStatusMessage(const QString& newMessage)

src/widget/form/settingswidget.cpp

@@ -51,7 +51,7 @@ SettingsWidget::SettingsWidget(QWidget* parent)
 
     setAttribute(Qt::WA_DeleteOnClose);
 
-    QVBoxLayout* bodyLayout = new QVBoxLayout();
+    bodyLayout = std::unique_ptr<QVBoxLayout>(new QVBoxLayout());
 
     settingsWidgets = std::unique_ptr<QTabWidget>(new QTabWidget(this));
     settingsWidgets->setTabPosition(QTabWidget::North);

src/widget/form/settingswidget.h

@@ -56,6 +56,7 @@ private:
     void retranslateUi();
 
 private:
+    std::unique_ptr<QVBoxLayout> bodyLayout;
     std::unique_ptr<QTabWidget> settingsWidgets;
     std::array<std::unique_ptr<GenericForm>, 6> cfgForms;
     int currentIndex;

src/widget/widget.cpp

@@ -528,11 +528,13 @@ Widget::~Widget()
 
     delete icon;
     delete profileForm;
+    delete profileInfo;
     delete addFriendForm;
     delete groupInviteForm;
     delete filesForm;
     delete timer;
     delete contentLayout;
+    delete settingsWidget;
 
     FriendList::clear();
     GroupList::clear();