1.21 Support
PlaceHolder support:
%diemdanh_days_checked_in% : Check sign in days in current month
%diemdanh_total_days% : Check total sign in days
%diemdanh_tickets% : Check how many re-sign in tickets player has
%diemdanh_checkin_top_month% : Check leaderboard if player has a position in the monthly sign in leaderboard
%diemdanh_checkin_top_total% : Check leaderboard if player has a position in the total sign in leaderboard