Save installation success independet of state. This fixes a bug that you can have a new list available but currently a transfer error. Now the actual saving / removal of the old list is only dependent on the list that is available in the settings.

.figure img {
    border: 1px solid lightgrey;
    margin-bottom: 10px;
    padding: 4px;
}
.figure .caption {
    margin-top: 0px;
    margin-bottom: 20px;
}