Fix Holiday Karambit Consistency & Thanksgiving Display Issue

I wanted to bring up a few issues regarding the holiday karambits that have been bothering collectors for a while.

First, the Memorial Day Karambit uses a completely different blade model from the rest of the holiday karambits. Valentine's, Summer, St. Patrick's, Easter, and several others all share the same karambit shape, making them look like part of a consistent collection. The Memorial Day version stands out because of its different blade design, and when viewed in inventory it looks out of place compared to the rest of the set.

The City Life Karambit has the same problem. It doesn't match the standard holiday karambit model and ends up looking inconsistent alongside the other karambits in a collector's inventory.

For players who spend time collecting these items, visual consistency matters. Having a few karambits use entirely different models makes the collection feel incomplete and less polished.

There's also another issue that needs attention: the rare Thanksgiving Karambit is still displaying a large question mark instead of its proper icon/model. This has been around for quite some time and should be fixed as soon as possible. Rare items shouldn't be missing their proper inventory display.