WIP notification settings, doesn't actually work

src/widgets/settingspages/NotificationPage.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "widgets/settingspages/SettingsPage.hpp"
+
+class QPushButton;
+class QListWidget;
+
+class QVBoxLayout;
+
+namespace chatterino {
+
+class NotificationPage : public SettingsPage
+{
+public:
+    NotificationPage();
+
+private:
+};
+
+}  // namespace chatterino