fix typo : Canycane -> Candycane

"Candycane" had the "d" left out in headSpecialCanycaneText and headSpecialCanycaneNotes. I've inserted the "d" in all places that needed it.

I've checked all locale files and none of them had that typo. I also did a "grep -r Canycane *" through my local copies of habitrpg and habitrpg-shared and didn't find it anywhere else.