Draft: Resolve "Allow group roles to be specific to one group type"

Closes #183

aleksis/apps/alsijil/forms.py

@@ -200,11 +200,14 @@ class PersonOverviewForm(ActionForm):
 
 
 class GroupRoleForm(forms.ModelForm):
-    layout = Layout("name", "icon", "colour")
+    layout = Layout(
+        Row("name", "icon", "colour"),
+        "group_type",
+    )
 
     class Meta:
         model = GroupRole
-        fields = ["name", "icon", "colour"]
+        fields = ["name", "icon", "colour", "group_type"]
 
 
 class AssignGroupRoleForm(forms.ModelForm):