Target Parent jQuery: elements => element because we reference only one
Target Parent jQuery: elements => element because we reference only one

- Partially fixes #2392.

FreeCodeCamp/FreeCodeCamp,pahosler/freecodecamp,BhaveshSGupta/FreeCodeCamp,jonathanihm/freeCodeCamp,BhaveshSGupta/FreeCodeCamp,jonathanihm/freeCodeCamp,raisedadead/FreeCodeCamp,otavioarc/freeCodeCamp,FreeCodeCamp/FreeCodeCamp,HKuz/FreeCodeCamp,BhaveshSGupta/FreeCodeCamp,pahosler/freecodecamp,otavioarc/freeCodeCamp,HKuz/FreeCodeCamp,raisedadead/FreeCodeCamp