render profile-page & sell page

[mxu4321]

• added code in handlebars & controllers to temporarily render sell & profile handlebar pages
• current login is not working, current page displaying are:
  1. after clicking "sell" button on home page will be directed to login page
  2. after clicking "login" button on home page will be directed to login page
  3. after entering user email and password and clicking "login" button on login page will be directed to profile page
  4. after clicking "Create Listing" on profile page will be directed to sell page