swaync: fix style path

[9p4]

Description

When the swaync.style option is set to a path: style = ./swaync-style.css, then the CSS file will just be a string to the store path. This fixes that problem.

Checklist

• [x] Change is backwards compatible.

• [x] Code formatted with ./format.

• [x] Code tested through nix-shell --pure tests -A run.all or nix develop --ignore-environment .#all using Flakes.

• [x] Test cases updated/added. See example.

• [x] Commit messages are formatted like

  {component}: {description}
  
  {long description}

  See CONTRIBUTING for more information and recent commit messages for examples.

• If this PR adds a new module

  • [ ] Added myself as module maintainer. See example.

Maintainer CC

@abayomi185

[abayomi185]

Thanks! LGTM

[rycee]

Merged to master now 🙂