Rename firefox-tabs to f-around-firefox (faf) and add to PATH

scripts/firefox-tabs/flake.nix

@@ -1,30 +0,0 @@
-{
-  description = "Firefox tabs script environment";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
-  };
-
-  outputs = { self, nixpkgs }:
-    let
-      system = "aarch64-darwin";
-      pkgs = import nixpkgs { inherit system; };
-      pythonEnv = pkgs.python3.withPackages (ps: with ps; [
-        lz4
-      ]);
-    in
-    {
-      devShells.${system}.default = pkgs.mkShell {
-        buildInputs = [
-          pythonEnv
-          pkgs.lz4
-        ];
-        shellHook = ''
-          echo "Firefox tabs script environment ready"
-          echo "Python: $(which python3)"
-          echo "Run: python3 firefox-tabs.py"
-        '';
-      };
-    };
-}
-