Disabled report junk button for junk messages

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

@@ -1967,7 +1967,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     ibMove.setVisibility(tools && button_move && move ? View.VISIBLE : View.GONE);
                     ibArchive.setVisibility(tools && button_archive && archive ? View.VISIBLE : View.GONE);
                     ibTrash.setVisibility(outbox || (tools && button_trash && trash) ? View.VISIBLE : View.GONE);
-                    ibJunk.setVisibility(tools && button_junk && move ? View.VISIBLE : View.GONE);
+                    ibJunk.setVisibility(tools && button_junk && !inJunk && move ? View.VISIBLE : View.GONE);
                     ibInbox.setVisibility(tools && inbox ? View.VISIBLE : View.GONE);
                     ibMore.setVisibility(tools && !outbox ? View.VISIBLE : View.GONE);
                     ibTools.setImageLevel(tools ? 0 : 1);