Rename charts snippets and add register chart file

bookwyrm/views/admin/dashboard.py

@@ -63,6 +63,16 @@ class Dashboard(View):
             }
         )
 
+        register_chart = Chart(
+            queryset=user_queryset,
+            queries = {
+                "total": lambda q, s, e: q.filter(
+                    created_date__gt=s,
+                    created_date__lte=e,
+                ).count()
+            }
+        )
+
         data = {
             "start": start.strftime("%Y-%m-%d"),
             "end": end.strftime("%Y-%m-%d"),
@@ -79,6 +89,7 @@ class Dashboard(View):
             ).count(),
             "user_stats": user_chart.get_chart(start, end, interval),
             "status_stats": status_chart.get_chart(start, end, interval),
+            "register_stats": register_chart.get_chart(start, end, interval),
         }
         return TemplateResponse(request, "settings/dashboard/dashboard.html", data)