Extra nginx setting for pleroma

src/freedombone-app-pleroma

           echo '';
           echo '    proxy_cache pleroma_media_cache;';
           echo '    proxy_cache_lock on;';
+          echo '    proxy_ignore_client_abort on;';
           echo "    proxy_pass http://localhost:$PLEROMA_PORT;";
           echo '  }';
           echo '  # include snippets/well-known.conf;';
       echo '';
       echo '    proxy_cache pleroma_media_cache;';
       echo '    proxy_cache_lock on;';
+      echo '    proxy_ignore_client_abort on;';
       echo "    proxy_pass http://localhost:$PLEROMA_PORT;";
       echo '  }';
       echo '  # include snippets/well-known.conf;';