User profile page

A way to view other user's details and photos. Basic
page created.
Add links to user profile page

All pages which mention users - have now added links
to the user names.
Edit profile page and updated navbar

user links on navbar updated to show private and
public profiles. Created empty edit profile page
for logged-in user.
Edit bio

user can now edit their biography
Add link to public profile on navbar
Merge branch 'public-user-page' into develop
Merge branch 'develop'