Fix another version errors

#### SimpleOPDS Catalog - Простой OPDS Каталог

#### Author: Dmitry V.Shelepnev  

#### Версия 0.47-devel

#### Версия 0.5-devel, 2023

[English README.md](README.md)

        constance_dbs = getattr(settings, 'CONSTANCE_DBS', None)

        if constance_dbs is not None and using not in constance_dbs:

            return

        if ContentType._meta.installed and Permission._meta.installed:

        # if ContentType._meta.installed and Permission._meta.installed:

        content_type, created = ContentType.objects.using(using).get_or_create(

            app_label='constance',

            model='config',

from django.core.exceptions import ValidationError

from django.core.management import BaseCommand, CommandError

from django.utils.translation import ugettext as _

from django.utils.translation import gettext as _

from django import VERSION

{% extends "admin/base_site.html" %}

{% load admin_static admin_list i18n %}

{% load static admin_list i18n %}

{% block extrastyle %}

  {{ block.super }}

{% load admin_static admin_list static i18n %}

{% load admin_list static i18n %}

<div id="results">

    <table>

        <thead>