7.3+ is broken on wlroots, so separated into onlyoffice-bin (7.2.0) and onlyoffice-bin_latest
wrapped with buildFHSEnv due to direct use of /usr/bin/curl to download plugins
add new mesa (libgbm) dependency
OnlyOffice is currently not launching
(https://github.com/NixOS/nixpkgs/issues/218238), due to a missing
library (libstdc++.so.6).
I used nix-locate to see which outputs provide it, and
`gcc-unwrapped.lib` is the one that makes more sense to me, but I'm not
sure if there's a better way to supply that lib.
