Jujutsu Craftsen

Patch notes: big update :o

• Black flashes now only apply weakness 1 and slowness 1, window reduced to 1 second, chaining now limited to sparks of black weapons only (currently only nanami's cleaver), chain black flash window reduced to 3 seconds, cursed blow has no added knockback, landing a black flash now does huge knockback.
• Added the entire advancement tree, including some secret advancements that might require friends.
• Patched lapse blue max moving the parts of the shrine causing it to dissapear and causing massive lag.
• Added 5 new items (Nanami's cleaver, grasshopper wings, blood manipulation, cursed speech and athletic boots)
• Made cursed focus craftable.