Floor tiles can be placed out of bounds#59

Floor tiles can be placed on unbuildable spaces, such as covering the entire pond and up on top of the cliff surrounding your farm

Added more correct restriction check to the floor tiles, but it’s still a bit wonky (able to place them over the water at some places)

It’s also possible to place tiles when selecting the menu buttons. So when I select “save as image,” a tile gets placed behind it, out of bounds, making the image a bit larger than it would’ve been. This also makes it hard to remove. Not world ending, just a little annoying when trying to switch between images to see comparisons overlay :(