refactor: use metaglot to take desktop file i18n over

locales/desktop/zh_CN.po

@@ -0,0 +1,24 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: pineapple-pictures\n"
+"Language: zh_CN\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#. Display name of the application.
+msgid "Pineapple Pictures"
+msgstr "菠萝看图"
+
+#. Generic name describing the application category.
+msgid "Image Viewer"
+msgstr "图像查看器"
+
+#. Tooltip-like description of the application.
+msgid "Pineapple Pictures is a lightweight image viewer"
+msgstr "菠萝看图是一个轻量级的图像查看器"
+
+#. Search keywords. Semicolon separated list; the trailing semicolon is required.
+msgid "Picture;Image;Viewer;Jpg;Jpeg;Png;"
+msgstr ""