[PRQ#57812] Merge Request for xmcl-launcher

MarsSeed [1] filed a request to merge xmcl-launcher [2] into xmcl- launcher-bin [3]: Both are the same, based on prebuilt binaries. The former one is abandoned and outdated. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/xmcl-launcher/ [3] https://aur.archlinux.org/pkgbase/xmcl-launcher-bin/