Use standard buttons where possible

Standard buttons are ordered in the right way and sometimes have an
icon.

Bug: https://matrix.to/#/%23nheko%3Anheko.im/%2476PZ2m6YftX8mqGIe9ettKbh_-pEYeVRQSJBfwFzWi0?via=pixie.town&via=matrix.org&via=matrix.flexinos.tech&via=half-shot.uk