Better packaging

[xaltsc]

Closes #525

Blocked by #515

[xaltsc]

One issue with this PR is that the CEF versions have to be manually kept in sync between the one defined here and the one used by the rust crate.

See #526 for the issue regarding automation of this task.

[xaltsc]

DO NOT merge this one yet, I was working on something else, and it turns out that better packaging is needed. I'll likely work on #545 as well in a third commit of this PR.

[xaltsc]

As I'm trying to build dependencies using crane, I'm hitting the same issue as in jellyfin/jellyfin-desktop#543 (comment)

error: failed to run custom build command for `cef-dll-sys v149.1.0+149.0.4`

Caused by:
  process didn't exit successfully: `/build/source/src/target/release/build/cef-dll-sys-6ead5d647d44dfb1/build-script-build` (exit status: 1)
  --- stdout
  cargo::rerun-if-changed=build.rs
  cargo::rerun-if-env-changed=FLATPAK
  cargo::rerun-if-env-changed=CEF_PATH
  Using CEF path from environment: /nix/store/ql68ks7bgvz88daaj13w977crv8d1z2m-cef-lib-149.0.4
  CEF_PATH is invalid (File I/O error: failed to open file `/nix/store/ql68ks7bgvz88daaj13w977crv8d1z2m-cef-lib-149.0.4/archive.json`: No such file or direc>

  --- stderr
  Error: HTTP request error: io: failed to lookup address information: Temporary failure in name resolution

  Caused by:
      io: failed to lookup address information: Temporary failure in name resolution
warning: build failed, waiting for other jobs to finish...

The error is in cef-download which I assume expects the cef tarball.

[xaltsc]

Opened an issue tauri-apps/cef-rs#426

[xaltsc]

I've moved the crane stuff to another PR #554, this out of scope for this one.

Once the previous PR is merged, this one should be ready for merging.

[xaltsc]

There's one annoying thing: I have rebased during this PR, and this has changed the hash of the commit from #515 . Merging automatically fails and gives two identical commits (but this can be easily solved).

Please ask me to correct history before merging subsequent PRs.

[xaltsc]

Last commit closes #540

Tested as much as I could without switching to Gnome (I guess it works).

[andrewrabert]

@xaltsc please combine the nix PR's and I'll marge asap