[ARPStateViewer] Minor Rework with smart pointers

src/shared/Modules/ARPStateViewer/ARPStateViewer.cpp

@@ -47,7 +47,7 @@ void ARPStateViewerModule::fromXmlObject(const XmlObject& xmlObject)
 
 void ARPStateViewerModule::setupUi()
 {
-    outerLayout = new QHBoxLayout;
+    outerLayout = std::make_unique<QHBoxLayout>();
     outerLayout->setContentsMargins(0, 0, 0, 0);
     outerLayout->setSpacing(0);
 
@@ -60,7 +60,7 @@ void ARPStateViewerModule::setupUi()
         outerLayout->addWidget(label);
     }
 
-    setLayout(outerLayout);
+    setLayout(outerLayout.get());
 }
 
 void ARPStateViewerModule::customContextMenuActionSetup()

src/shared/Modules/ARPStateViewer/ARPStateViewer.h

@@ -47,7 +47,7 @@ private:
     void setFilter(const Filter& filter);
     void onMsgReceived(const Message& msg);
 
-    QHBoxLayout* outerLayout;
+    std::unique_ptr<QHBoxLayout> outerLayout;
 
     Filter filter;
     ARPStatesList::State currentState;