c0d2e8cd47
- Refresh many lock entries in flake.lock with new revisions and hashes. - Enable the Helium appimage in default, desktop, and laptop host configs; add comment sections for web browsers and disable Fluxer by default. - Rename the affinity option description from “Steam” to “Affinity”. - Refactor appimage handling: introduce a generic mkAppImagePackage helper, import individual packages, and expose per‑package enable options. - Update fluxer.nix to use a configurable icon size and adjust install paths. - Bump Helium to version 0.12.3.1, update its hash, and make its icon size configurable. - Adjust Hyprland settings: comment out the split‑layout bind, set configType = "hyprlang", enable Xwayland early, move vfr to the debug section, and comment out dwindle pseudotile.