Merge branch '20-refactor-users/urls.py' into 'master'

Resolve "Refactor users/urls.py"

Closes #20

See merge request !29

backend/secfit/users/urls.py

 from django.urls import path, include
 from users import views
-from rest_framework.urlpatterns import format_suffix_patterns
 from rest_framework_simplejwt.views import (
     TokenObtainPairView,
     TokenRefreshView,