Intervention template adjustments

* renames intervention variable to obj to match other template style
* renames open routes to detail routes

ema/urls.py

@@ -13,7 +13,7 @@ urlpatterns = [
     path("", index_view, name="index"),
     path("new/", new_view, name="new"),
     path("new/id", new_id_view, name="new-id"),
-    path("<id>", open_view, name="open"),
+    path("<id>", detail_view, name="detail"),
     path('<id>/log', log_view, name='log'),
     path('<id>/edit', edit_view, name='edit'),
     path('<id>/remove', remove_view, name='remove'),