Normalize "U-Shaped/Loose" Naming

The new Lifts are called "Loose" instead of "U-Shaped" as the previous belts were called. This is confusing even after a while as I keep forgetting and finding myself looking for "U-Shaped Lift". IMO "Loose" is a better name and it'd better to keep that and rename the old names, but either way, don't use both names.