Add option to change passwords

locales/de.json

@@ -13,6 +13,9 @@
     "Next page": "Nächste Seite",
     "Previous page": "Vorherige Seite",
     "Clear watch history?": "Verlauf löschen?",
+    "New password": "",
+    "New passwords must match": "",
+    "Cannot change password for Google accounts": "",
     "Authorize token?": "",
     "Authorize token for `x`?": "",
     "Yes": "Ja",
@@ -82,6 +85,7 @@
     "Data preferences": "Dateneinstellungen",
     "Clear watch history": "Verlauf löschen",
     "Import/export data": "Daten im- exportieren",
+    "Change password": "",
     "Manage subscriptions": "Abonnements verwalten",
     "Manage tokens": "",
     "Watch history": "Verlauf",