Redesign the recent files API a bit.

Core/Util/GameManager.cpp

@@ -47,6 +47,7 @@
 #include "Core/System.h"
 #include "Core/FileSystems/ISOFileSystem.h"
 #include "Core/Util/GameManager.h"
+#include "Core/Util/RecentFiles.h"
 #include "Common/Data/Text/I18n.h"
 
 GameManager g_GameManager;
@@ -189,7 +190,7 @@ void GameManager::Update() {
 			installThread_.join();
 		}
 		if (cleanRecentsAfter_.exchange(false)) {
-			g_Config.CleanRecent();
+			g_recentFiles.Clean();
 		}
 	}
 }
@@ -536,7 +537,7 @@ bool GameManager::DetectTexturePackDest(struct zip *z, int iniIndex, Path &dest)
 	std::string gameID = games.begin()->first;
 	if (games.size() > 1) {
 		// Check for any supported game on their recent list and use that instead.
-		for (const std::string &path : g_Config.RecentIsos()) {
+		for (const std::string &path : g_recentFiles.GetRecentFiles()) {
 			std::string recentID = GetGameID(Path(path));
 			if (games.find(recentID) != games.end()) {
 				gameID = recentID;