Use report off icon for no spam icon

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

@@ -1944,6 +1944,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     ibTrash.setTag(delete);
                     ibTrash.setImageResource(delete ? R.drawable.twotone_delete_forever_24 : R.drawable.twotone_delete_24);
                     ibTrashBottom.setImageResource(delete ? R.drawable.twotone_delete_forever_24 : R.drawable.twotone_delete_24);
+                    ibInbox.setImageResource(inJunk ? R.drawable.twotone_report_off_24 : R.drawable.twotone_inbox_24);
 
                     ibUndo.setVisibility(outbox ? View.VISIBLE : View.GONE);
                     ibRule.setVisibility(tools && button_rule && !outbox && !message.folderReadOnly ? View.VISIBLE : View.GONE);