Revert "refactor: remove news feed"

This reverts commit 361ce7818e.

launcher/ui/MainWindow.h

@@ -27,6 +27,7 @@
 #include "updater/GoUpdate.h"
 
 class LaunchController;
+class NewsChecker;
 class NotificationChecker;
 class QToolButton;
 class InstanceProxyModel;
@@ -108,6 +109,10 @@ private slots:
 
     void on_actionReportBug_triggered();
 
+    void on_actionMoreNews_triggered();
+
+    void newsButtonClicked();
+
     void on_actionLaunchInstance_triggered();
 
     void on_actionLaunchInstanceOffline_triggered();
@@ -169,6 +174,8 @@ private slots:
 
     void repopulateAccountsMenu();
 
+    void updateNewsLabel();
+
     /*!
      * Runs the DownloadTask and installs updates.
      */
@@ -198,12 +205,14 @@ private:
     // these are managed by Qt's memory management model!
     InstanceView *view = nullptr;
     InstanceProxyModel *proxymodel = nullptr;
+    QToolButton *newsLabel = nullptr;
     QLabel *m_statusLeft = nullptr;
     QLabel *m_statusCenter = nullptr;
     QMenu *accountMenu = nullptr;
     QToolButton *accountMenuButton = nullptr;
     KonamiCode * secretEventFilter = nullptr;
 
+    unique_qobject_ptr<NewsChecker> m_newsChecker;
     unique_qobject_ptr<NotificationChecker> m_notificationChecker;
 
     InstancePtr m_selectedInstance;