Refactor AchievementsWindow::UpdateData to take a partial update parameter

UpdateData in AchievementsWindow now only updates the components being requested, massively improving the window's performance. The parameter is UpdatedItems in AchievementManager, which tracks which portions of the system have been updated for every update callback.

Source/Core/DolphinQt/Achievements/AchievementsWindow.h

@@ -6,6 +6,8 @@
 #ifdef USE_RETRO_ACHIEVEMENTS
 #include <QDialog>
 
+#include "Core/AchievementManager.h"
+
 class AchievementHeaderWidget;
 class AchievementLeaderboardWidget;
 class AchievementSettingsWidget;
@@ -19,7 +21,7 @@ class AchievementsWindow : public QDialog
   Q_OBJECT
 public:
   explicit AchievementsWindow(QWidget* parent);
-  void UpdateData();
+  void UpdateData(AchievementManager::UpdatedItems updated_items);
   void ForceSettingsTab();
 
 private: