Get rid of example folder.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Save user's role on sessionStorage.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Delete console.log.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Only show dashboard to admins.

Signed-off-by: tungpham31 <tungpham31@gmail.com>