Fixed A lot of DSZ1 and DSZ2 floor misalignments

[cookiefonster]

2.2.5 changed the alignment of quite a few floors in DSZ2, specifically those with the flats DSTRACK1 or DSTRACK2, to be consistent with the walls surrounding them. However, there are still a lot in DSZ1 and a few in DSZ2 that still have the floors misaligned with the walls. Here's an Imgur gallery with some of them (probably not comprehensive):

https://imgur.com/a/2dt6Jpu