Modernize std::any_of with ranges

In WiimoteReal.cpp, JitRegCache.cpp, lambda predicates were replaced by pointers to member functions because ranges algorithms are able invoke those.

In ConvertDialog.cpp, the `std::mem_fn` helper was removed because ranges algorithms are able to handle pointers to member functions as predicates.

Source/Core/Core/NetPlayServer.cpp

@@ -2232,8 +2232,8 @@ bool NetPlayServer::PlayerHasControllerMapped(const PlayerId pid) const
 {
   const auto mapping_matches_player_id = [pid](const PlayerId& mapping) { return mapping == pid; };
 
-  return std::any_of(m_pad_map.begin(), m_pad_map.end(), mapping_matches_player_id) ||
-         std::any_of(m_wiimote_map.begin(), m_wiimote_map.end(), mapping_matches_player_id);
+  return std::ranges::any_of(m_pad_map, mapping_matches_player_id) ||
+         std::ranges::any_of(m_wiimote_map, mapping_matches_player_id);
 }
 
 void NetPlayServer::AssignNewUserAPad(const Client& player)