Change URL of week_view to match the week_select url requirements

aleksis/apps/alsijil/urls.py

@@ -9,7 +9,7 @@ urlpatterns = [
         views.lesson,
         name="lesson_by_week_and_period",
     ),
-    path("week", views.week_view, name="week_view"),
+    path("week/", views.week_view, name="week_view"),
     path("week/<int:year>/<int:week>", views.week_view, name="week_view_by_week"),
     path("week/<str:type_>/<int:id_>/", views.week_view, name="week_view"),
     path(