[SubscriptionsPanel] Small Rework on API

src/shared/Components/SubscriptionsPanel/SubscriptionsPanel.cpp

@@ -28,8 +28,10 @@
 
 using namespace std;
 
-SubscriptionsPanel::SubscriptionsPanel()
+SubscriptionsPanel::SubscriptionsPanel() : QWidget(nullptr)
 {
+    resize({500, 200});
+
     setWindowTitle("Subscriptions panel");
     setupUi();
 }
@@ -40,12 +42,8 @@ SubscriptionsPanel::SubscriptionsPanel(const QList<Filter>& filters)
 }
 
 SubscriptionsPanel::SubscriptionsPanel(const std::list<Filter>& filters)
-    : QWidget(nullptr)
+    : SubscriptionsPanel()
 {
-    resize({500, 200});
-
-    setWindowTitle("Subscriptions panel");
-    setupUi();
     setFilters(filters);
 }