shop should also have a counter for the floor

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I have started to play DRG Survivor, and I think the shop between different floors should have an indicator on where are you currently. TBF I was drinking and I got up to refill my glasses and go to the toilet, but afterwards I had no idea which floor I was on. It is kinda critical to know, or at least useful information to have when you are buying stuff. Small detail but a QoL thing that I think should be implemented.