Merge pull request #129 from justinpinili/feat/BarGraph

(fix) changed URL to production URL in post request.
(Merge CONFLICT) Merge conflict resolved
(FEAT) Added shadow on Fork link in nav bar
(BUG) Fixed the bugs in track post and track user.
(BUG) Deleted double footer in home.html
Merge pull request #130 from Oleg24/feat/home

(BUG) Resolved bug with track user and track post
(fix) only displays bar graph after three categories are retrieved.