Config: Port remaining Interface settings to new config system.

Source/Core/Core/TitleDatabase.cpp

@@ -16,7 +16,7 @@
 #include "Common/FileUtil.h"
 #include "Common/MsgHandler.h"
 #include "Common/StringUtil.h"
-#include "Core/ConfigManager.h"
+#include "Core/Config/MainSettings.h"
 #include "Core/IOS/ES/Formats.h"
 #include "DiscIO/Enums.h"
 
@@ -97,7 +97,7 @@ const std::string& TitleDatabase::GetTitleName(const std::string& gametdb_id,
   if (it != m_user_title_map.end())
     return it->second;
 
-  if (!SConfig::GetInstance().m_use_builtin_title_database)
+  if (!Config::Get(Config::MAIN_USE_BUILT_IN_TITLE_DATABASE))
     return EMPTY_STRING;
 
   const Map& map = *m_title_maps.at(language);