chore(reorganize urls): authetication urls

- Prefix '/user/' to all authenticaton urls
- Rename user registration url to '/api/user/register/'

[Finishes #164772118]

authors/apps/authentication/urls.py

@@ -5,21 +5,20 @@
                     EmailVerificationView, CreateEmailVerificationTokenAPIView,
                     PasswordResetView)
 
+
 app_name = 'authentication'
 
+
 urlpatterns = [
-    path('user/', UserRetrieveUpdateAPIView.as_view(), name='get users'),
-    path('users/', RegistrationAPIView.as_view(), name='register'),
-    path('users/login/', LoginAPIView.as_view(), name='login'),
-    path('users/oauth/', SocialAuthenticationView.as_view(),
+    path('', UserRetrieveUpdateAPIView.as_view(), name='get users'),
+    path('register/', RegistrationAPIView.as_view(), name='register'),
+    path('login/', LoginAPIView.as_view(), name='login'),
+    path('oauth/', SocialAuthenticationView.as_view(),
          name='social_login'),
-    path(
-        'activate/<str:token>',
-        EmailVerificationView.as_view(), name='verify email'),
+    path('activate/<str:token>',
+         EmailVerificationView.as_view(), name='verify email'),
     path('token/', CreateEmailVerificationTokenAPIView.as_view(),
          name='new verification token'),
-    path('users/password-reset/', PasswordResetView.as_view(),
+    path('password-reset/', PasswordResetView.as_view(),
          name='password-reset')
-
-
 ]

authors/apps/profiles/tests/test_views.py

@@ -79,7 +79,8 @@ def login_a_user(self):
         """
 
         response = self.test_client.post(
-            "/api/users/login/", data=json.dumps(self.data), content_type='application/json')
+            reverse("authentication:login"),
+            data=json.dumps(self.data), content_type='application/json')
         token = response.json()['user']['token']
         return token
 
@@ -92,7 +93,8 @@ def register_user(self, user_details_dict):
         Returns: an issued post request to the user registration endpoint
         """
         return self.test_client.post(
-            "/api/users/", data=json.dumps(user_details_dict), content_type='application/json')
+            reverse("authentication:register"),
+            data=json.dumps(user_details_dict), content_type='application/json')
 
     def follow_user(self, username, token):
         """This method sends a follow request to a user"""

authors/urls.py

@@ -43,8 +43,8 @@
                               namespace='articles')),
     path('profiles/', include('authors.apps.profiles.urls',
                               namespace='profiles')),
-    path('', include('authors.apps.authentication.urls',
-                     namespace='authentication')),
+    path('user/', include('authors.apps.authentication.urls',
+                          namespace='authentication')),
 ]