If you want the nerdy talk, then I'll put it here
THIS IS FOR PC ONLY.
I do not know how to change Android files unfortunately.
There's 2 ways of going about it. If you're using MTool, then you can simply boot up the game using it, then go into the Switches tab and turn on Switch 159 temporarily, grab the feather duster, and then turn it off.
If not, then you can edit the data for yourself. I recommend using Visual Studio or Visual Studio Code as it formats the code.
1. Go to the game files and head to www -> data.
2. Find Map 26 (This is the Dining Room (Day) map).
3. Find all instances of 159 (Ctrl-F and then type 159) and then replace it with 160.
4. Save the map and then simply leave and re-enter the dining room. It should be there