diff --git a/src/po/nan.po b/src/po/nan.po
deleted file mode 100644
index 2fc520f..0000000
--- a/src/po/nan.po
+++ /dev/null
@@ -1,195 +0,0 @@
-# SOME DESCRIPTIVE TITLE.
-# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
-# This file is distributed under the same license as the nightthemeswitcher@romainvigier.fr package.
-# Dingzhong Chen <wsxy162@gmail.com>, 2022.
-msgid ""
-msgstr ""
-"Project-Id-Version: nightthemeswitcher@romainvigier.fr\n"
-"Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2022-10-30 14:37+0100\n"
-"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
-"Last-Translator: Automatically generated\n"
-"Language-Team: none\n"
-"Language: nan\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-
-#: src/data/ui/BackgroundButton.ui:8
-msgid "Change background"
-msgstr ""
-
-#: src/data/ui/BackgroundButton.ui:24
-msgid "Select your background image"
-msgstr ""
-
-#: src/data/ui/BackgroundsPage.ui:9
-msgid "Backgrounds"
-msgstr ""
-
-#: src/data/ui/BackgroundsPage.ui:13
-msgid ""
-"Background switching is handled by the Shell, these settings allow you to "
-"change the images it uses."
-msgstr ""
-
-#: src/data/ui/BackgroundsPage.ui:16
-msgid "Day background"
-msgstr ""
-
-#: src/data/ui/BackgroundsPage.ui:29
-msgid "Night background"
-msgstr ""
-
-#: src/data/ui/ClearableEntry.ui:10 src/data/ui/ShortcutButton.ui:43
-msgid "Clear"
-msgstr ""
-
-#: src/data/ui/CommandsPage.ui:9
-msgid "Commands"
-msgstr ""
-
-#: src/data/ui/CommandsPage.ui:13
-msgid "Run commands"
-msgstr ""
-
-#: src/data/ui/CommandsPage.ui:21 src/data/ui/SchedulePage.ui:27
-msgid "Sunrise"
-msgstr ""
-
-#. Don't translate the `notify-send` command.
-#: src/data/ui/CommandsPage.ui:25
-msgid "notify-send \"Hello sunshine!\""
-msgstr ""
-
-#: src/data/ui/CommandsPage.ui:35 src/data/ui/SchedulePage.ui:40
-msgid "Sunset"
-msgstr ""
-
-#. Don't translate the `notify-send` command.
-#: src/data/ui/CommandsPage.ui:39
-msgid "notify-send \"Hello moonshine!\""
-msgstr ""
-
-#: src/data/ui/ContributePage.ui:9
-msgid "Contribute"
-msgstr ""
-
-#: src/data/ui/ContributePage.ui:55
-msgid "View the code and report issues"
-msgstr ""
-
-#: src/data/ui/ContributePage.ui:68
-msgid "Contribute to the translation"
-msgstr ""
-
-#: src/data/ui/ContributePage.ui:81
-msgid "Support me with a donation"
-msgstr ""
-
-#: src/data/ui/SchedulePage.ui:9
-msgid "Schedule"
-msgstr ""
-
-#: src/data/ui/SchedulePage.ui:13
-msgid ""
-"Your location will be used to calculate the current sunrise and sunset "
-"times. If you prefer, you can set a manual schedule. It will also be used "
-"when your location is unavailable."
-msgstr ""
-
-#: src/data/ui/SchedulePage.ui:16
-msgid "Manual schedule"
-msgstr ""
-
-#: src/data/ui/SchedulePage.ui:57
-msgid "Keyboard shortcut"
-msgstr ""
-
-#: src/data/ui/ShortcutButton.ui:15
-msgid "Choose…"
-msgstr ""
-
-#: src/data/ui/ShortcutButton.ui:32
-msgid "Change keyboard shortcut"
-msgstr ""
-
-#: src/data/ui/ShortcutButton.ui:78
-msgid "Press your keyboard shortcut…"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:9
-msgid "Themes"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:15
-msgid ""
-"GNOME has a built-in dark mode that the extension uses. Manually switching "
-"themes is discouraged and is only here for legacy reasons."
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:30
-msgid "Switch GTK theme"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:31
-msgid ""
-"Forcing a dark theme on applications not designed to support it can have "
-"undesirable side-effects such as unreadable text or invisible icons."
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:35 src/data/ui/ThemesPage.ui:51
-#: src/data/ui/ThemesPage.ui:67 src/data/ui/ThemesPage.ui:83
-msgid "Day variant"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:40 src/data/ui/ThemesPage.ui:56
-#: src/data/ui/ThemesPage.ui:72 src/data/ui/ThemesPage.ui:88
-msgid "Night variant"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:47
-msgid "Switch Shell theme"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:63
-msgid "Switch icon theme"
-msgstr ""
-
-#: src/data/ui/ThemesPage.ui:79
-msgid "Switch cursor theme"
-msgstr ""
-
-#. Time separator (eg. 08:27)
-#: src/data/ui/TimeChooser.ui:23
-msgid ":"
-msgstr ""
-
-#: src/modules/Timer.js:268
-msgid "Unknown Location"
-msgstr ""
-
-#: src/modules/Timer.js:269
-msgid "A manual schedule will be used to switch the dark mode."
-msgstr ""
-
-#: src/modules/Timer.js:274
-msgid "Edit Manual Schedule"
-msgstr ""
-
-#: src/modules/Timer.js:278
-msgid "Open Location Settings"
-msgstr ""
-
-#: src/preferences/BackgroundButton.js:86
-msgid "This image format is not supported."
-msgstr ""
-
-#: src/preferences/ContributePage.js:16
-#, javascript-format
-msgid "Version %d"
-msgstr ""
-
-#: src/preferences/ThemesPage.js:50
-msgid "Default"
-msgstr ""