### NixOS
- re-added libnotify and jq
they are needed for my screenshot script and were removed by accident
- removed kvantum, hyprland
- removed unnecessary hyprland options in flake.nix
- configured browsers through home-manager options
- fixed typo in i18n.nix
### Common
- added nix-output-monitor
- configured helix
- fixed indentation at programs.vscode
- removed `environment.systemPackages = with pkgs; [ clash-meta ];`,
as I found it isn't nessessary...
- use same environment variables on different platforms and alias