XenForo FA-Icon in user bar

[CR LEAKS]

In extra.less:

.p-navgroup-link {
    &.p-navgroup-link--user {
        .avatar{
            display:none;
        }
        .m-faBase();
        .m-faBefore(@fa-var-user, 1em);
        & .p-navgroup-linkText {
            display: none;
        }
    }
}