Improve url configuration for substitutions print view

aleksis/apps/chronos/templates/chronos/substitutions.html

@@ -18,7 +18,7 @@
     </div>
     <div class="col s2 m6 right align-right print-icon">
       <a class="waves-effect waves-teal btn-flat btn-flat-medium right"
-         href="{% url "substitutions_print_by_date" day.year day.month day.day "print" %}" target="_blank">
+         href="{% url "substitutions_print_by_date" day.year day.month day.day %}" target="_blank">
         <i class="material-icons center">print</i>
       </a>
     </div>

aleksis/apps/chronos/urls.py

@@ -22,7 +22,7 @@ urlpatterns = [
         name="delete_substitution",
     ),
     path("substitutions/", views.substitutions, name="substitutions"),
-    path("substitutions/<str:is_print>/", views.substitutions, name="substitutions_print"),
+    path("substitutions/print/", views.substitutions, {"is_print": True}, name="substitutions_print"),
     path("substitutions/<int:year>/<int:month>/<int:day>/", views.substitutions, name="substitutions_by_date"),
-    path("substitutions/<int:year>/<int:month>/<int:day>/<str:is_print>/", views.substitutions, name="substitutions_print_by_date"),
+    path("substitutions/<int:year>/<int:month>/<int:day>/print/", views.substitutions, {"is_print": True}, name="substitutions_print_by_date"),
 ]

aleksis/apps/chronos/views.py

@@ -299,12 +299,10 @@ def substitutions(
     year: Optional[int] = None,
     month: Optional[int] = None,
     day: Optional[int] = None,
-    is_print: Optional[str] = None,
+    is_print: bool = False,
 ) -> HttpResponse:
     context = {}
 
-    is_print = is_print == "print"
-
     if day:
         wanted_day = timezone.datetime(year=year, month=month, day=day).date()
         wanted_day = get_next_relevant_day(wanted_day)