Add parental link to article page

#173

district/models.py

@@ -412,6 +412,10 @@ class DistrictArticlePage(
         )
         return context
 
+    @property
+    def articles_page(self):
+        return self.get_parent()
+
 
 class DistrictArticlesPage(
     RoutablePageMixin, ExtendedMetadataPageMixin, SubpageMixin, MetadataPageMixin, Page

shared/templates/shared/more_articles_snippet.html

 <nav class="text-center mb-3">
-    <a href="{{ page.root_page.articles_page.url }}" class="btn btn--icon text-xl pt-8" rel="next" >
+    <a href="{{ page.articles_page.url }}" class="btn btn--icon text-xl pt-8" rel="next" >
   <div class="btn__body-wrap">
     <div class="btn__body ">Další články</div>
     <div class="btn__icon ">