Small fix

app/src/main/java/eu/faircode/email/FragmentOptions.java

@@ -139,7 +139,8 @@ public class FragmentOptions extends FragmentBase {
             "indentation", "date", "date_week", "date_fixed", "date_bold", "date_time", "threading", "threading_unread",
             "show_filtered",
             "highlight_unread", "highlight_color", "color_stripe", "color_stripe_wide",
-            "avatars", "bimi", "favicons", "generated_icons", "identicons", "circular", "saturation", "brightness", "threshold",
+            "avatars", "bimi", "gravatars", "libravatars", "favicons", "favicons_partial", "favicons_manifest", "generated_icons", "identicons",
+            "circular", "saturation", "brightness", "threshold",
             "authentication", "authentication_indicator",
             "email_format", "prefer_contact", "only_contact", "distinguish_contacts", "show_recipients",
             "font_size_sender", "sender_ellipsize",