Change Mobile Header to look like Desktop Header

Add to Design > Custom CSS

/* Force Desktop Nav on Mobile - With Burger Appear */
@media screen and (max-width:991px) {
.header-display-desktop {
    display: flex !important;
}
.header-display-mobile {
    display: none;
}
.header-burger {
    display: none;
}
.header-nav {
    display: flex !important;
}
.header-nav {
    display: flex !important;
    flex: 70% !important;
    justify-content: flex-end;
}
.showOnDesktop .header-actions-action.header-actions-action--cart {
    display: none;
}
    .header-title-logo {text-align: center;}
}