Run make gettext and add new/modified files

source/locale/pot/404.pot

@@ -0,0 +1,29 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) 2011-2021, The Mixxx Development Team
+# This file is distributed under the same license as the Mixxx package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: Mixxx 2.4\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-11-29 12:16-0500\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"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: ../../404.rst:4
+msgid "Page not found"
+msgstr ""
+
+#: ../../404.rst:6
+msgid "Sorry, we can't find the page you're looking for. Go back to the :ref:`start page of the manual <index>`."
+msgstr ""
+
+#: ../../404.rst:10
+msgid "Mixxx is all about collaboration. If you think this is a mistake on our side, let us know on our `issue tracker on GitHub <https://github.com/mixxxdj/manual/issues>`_!"
+msgstr ""