New package: neovide-0.15.0

[theoheretic]

Closes #43688

Testing the changes

• I tested the changes in this PR: YES

New package

• This new package conforms to the package requirements: YES

Local build testing

• I built this PR locally for my native architecture, x86_64-glibc
• I built this PR locally for these architectures (if supported. mark crossbuilds):
  • x86_64-musl
  • aarch64
  • aarch64-musl

Notes

Currently figuring out how to get aarch64{,"-musl"} to build.

[classabbyamp]

it's definitely possible to build on musl: https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/community/neovide/APKBUILD

[tranzystorekk]

There's a lot of work-in-progress bits to this PR that makes me not want to give it a green light over the prior work in #53515

[theoheretic]

@classabbyamp: Good to know. I'll look at that for inspiration.
@tranzystorekk: Oh, interesting. I wasn't aware of the previous PR for Neovide. I'm up for drafting it until I feel as if it is complete.

[theoheretic]

Resolved the comment above by using xbps-src -A <arch> instead of xbps-src -a <arch>.

Now the build failure happens during install phase when it can't find gn... despite it being available as a host dependency? Some further looking is needed.

It now builds successfully on musl after hacking around a small bit.

[theoheretic]

Cross-building is now fixed and as such, the PR is ready to be merged.