Localization (#214)

* General localization:
  - Add gettext to literals
  - Add trans template tag to templates
  - Set localized date and time
  - Add locale option to TEMPLATE.env
  - Add migrations that result from model field changes

* Add german locale

* Add german locale

shynet/a17t/locale/de/LC_MESSAGES/django.po

@@ -0,0 +1,29 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2022-06-24 13:20+0200\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#: a17t/templates/a17t/includes/pagination.html:5
+#: a17t/templates/a17t/includes/pagination.html:7
+msgid "Previous"
+msgstr "Zurück"
+
+#: a17t/templates/a17t/includes/pagination.html:10
+#: a17t/templates/a17t/includes/pagination.html:12
+msgid "Next"
+msgstr "Vor"