Refresh flake.lock with newer revisions and hashes for packages.
Upgrade Helium AppImage to version 0.20.3.1.
Remove hyprland-qtutils from essentials package list.
Update Codex ponytail plugin to v5.3.3 with new SHA256 hash.
- Set `chatgpt.enable = true` for both Garand‑Desktop and Garand‑Laptop.
- Rename `modules/home/codex.nix` to `modules/home/codex/default.nix`.
- Add `mutableSettings = true` and import `plugins.nix` in the Codex
module.
- Introduce `modules/home/codex/plugins.nix` defining Codex plugins and
marketplaces.
- Update `modules/home/default.nix` to import the new Codex directory.
- Refresh ChatGPT desktop entry icon SHA256 hash.
GarandPLG