flake.lock: Update

Flake lock file updates:

• Updated input 'home-manager':
    'github:nix-community/home-manager/b2a2133c9a0b0aa4d06d72b5891275f263ee08df' (2023-10-06)
  → 'github:nix-community/home-manager/81ab14626273ca38cba947d9a989c9d72b5e7593' (2023-10-21)
• Updated input 'nix-darwin':
    'github:lnl7/nix-darwin/8b6ea26d5d2e8359d06278364f41fbc4b903b28a' (2023-10-03)
  → 'github:lnl7/nix-darwin/19f75c2b45fbfc307ecfeb9dadc41a4c1e4fb980' (2023-10-19)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/87828a0e03d1418e848d3dd3f3014a632e4a4f64' (2023-10-06)
  → 'github:nixos/nixpkgs/7c9cc5a6e5d38010801741ac830a3f8fd667a7a0' (2023-10-19)
• Updated input 'stylix':
    'github:danth/stylix/c3c9f4784b4f08f6676340126858d936edbce1fa' (2023-09-10)
  → 'github:danth/stylix/b2f73724d11868d020207fb87fb2d9c3ae96976d' (2023-10-19)
• Added input 'stylix/base16-alacritty':
    'github:aarowill/base16-alacritty/63d8ae5dfefe5db825dd4c699d0cdc2fc2c3eaf7' (2023-01-21)
• Added input 'stylix/base16-fish':
    'github:tomyun/base16-fish/2f6dd973a9075dabccd26f1cded09508180bf5fe' (2021-06-01)
• Added input 'stylix/base16-foot':
    'github:tinted-theming/base16-foot/eedbcfa30de0a4baa03e99f5e3ceb5535c2755ce' (2023-10-08)
• Added input 'stylix/base16-helix':
    'github:tinted-theming/base16-helix/dbe1480d99fe80f08df7970e471fac24c05f2ddb' (2023-10-08)
• Added input 'stylix/base16-kitty':
    'github:kdrag0n/base16-kitty/06bb401fa9a0ffb84365905ffbb959ae5bf40805' (2022-10-05)
• Added input 'stylix/base16-tmux':
    'github:tinted-theming/base16-tmux/c02050bebb60dbb20cb433cd4d8ce668ecc11ba7' (2023-10-08)
• Added input 'stylix/base16-vim':
    'github:chriskempson/base16-vim/3be3cd82cd31acfcab9a41bad853d9c68d30478d' (2022-09-20)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/720bd006d855b08e60664e4683ccddb7a9ff614a' (2023-09-27)
  → 'github:numtide/treefmt-nix/aae39f64f5ecbe89792d05eacea5cb241891292a' (2023-10-15)