Started German translation

src/views/i18n.js

@@ -143,5 +143,17 @@ module.exports = {
     profile: "Pagina",
     search: "Buscar",
     settings: "Reglas"
+  },
+  de: {
+    extended: "Erweitert",
+    popular: "Beliebt",
+    latest: "Neuestes",
+    mentions: "Erwähnungen",
+    topics: "Themen",
+    profile: "Profil",
+    search: "Suche",
+    settings: "Einstellungen",
+    publish: "Veröffentlichen",
+    private: "Privat"
   }
 };

src/views/index.js

@@ -560,7 +560,9 @@ exports.settingsView = ({ status, peers, theme, themeNames }) => {
         { action: "/language", method: "post" },
         select({ name: "language" }, [
           languageOption("en", "English"),
-          languageOption("es", "Español")
+          languageOption("es", "Español"),
+          /* cspell:disable-next-line */
+          languageOption("de", "Deutsch")
         ]),
         button({ type: "submit" }, i18n.setLanguage)
       ),