use proper Character size in default

src/character/character.rs

@@ -136,7 +136,7 @@ impl Character {
 
 impl std::default::Default for Character {
     fn default() -> Character {
-        Character::from_bytes(&mut std::io::Cursor::new([0; 0x2000].to_vec())).unwrap()
+        Character::from_bytes(&mut std::io::Cursor::new([0; 0x190].to_vec())).unwrap()
     }
 }