refactor: Move export into separate app

export/views/__init__.py

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+from .base import ExportListView
+
+from . import (
+    people
+)

export/views/base.py

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+import csv
+import typing
+
+from django.contrib.auth.mixins import LoginRequiredMixin
+from django.http import HttpResponse
+from django.views.generic import TemplateView
+from django.views.generic.list import BaseListView
+
+
+class CsvExportView(LoginRequiredMixin, BaseListView):
+    model = None
+    serializer_class = None
+
+    def render_to_response(self, context: typing.Dict) -> HttpResponse:
+        response = HttpResponse(content_type='text/csv')
+        response['Content-Disposition'] = f'attachment; filename="{self.get_context_object_name(self.object_list)}.csv"'
+
+        # Force ordering by PK - though this should be default anyway
+        serializer = self.serializer_class(self.get_queryset().order_by('pk'), many=True)
+
+        writer = csv.DictWriter(response, fieldnames=serializer.child.column_headers)
+        writer.writeheader()
+        writer.writerows(serializer.data)
+        
+        return response
+
+
+class ExportListView(LoginRequiredMixin, TemplateView):
+    template_name = 'export/export.html'

export/views/people.py

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+from . import base
+from .. import serializers
+
+from people import models
+
+
+class PersonExportView(base.CsvExportView):
+    model = models.person.Person
+    serializer_class = serializers.people.PersonExportSerializer
+
+
+class RelationshipExportView(base.CsvExportView):
+    model = models.relationship.Relationship
+    serializer_class = serializers.people.RelationshipSerializer