flake: update inputs

fix nixpkgs not found in nix search path

update docs

flake.lock: Update

Flake lock file updates:

• Updated input 'home-manager':
    'github:nix-community/home-manager/280721186ab75a76537713ec310306f0eba3e407' (2023-11-12)
  → 'github:nix-community/home-manager/ab1459a1fb646c40419c732d05ec0bf2416d4506' (2023-11-15)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/e8ad54f562b4621c7c080b4a3ddbafe4735bcb86' (2023-11-15)
  → 'github:NixOS/nixpkgs/634d6a76c25b1747e0b51a33da49d613ce815e84' (2023-11-16)
• Updated input 'raycast':
    'github:stepbrobd/raycast-overlay/54302bc1130fbf18dbdd7add76c10f9cf4abe382' (2023-11-13)
  → 'github:stepbrobd/raycast-overlay/eabd809b05d17920f3d63cdcd26ee26bbbd9b244' (2023-11-16)
• Updated input 'vscode':
    'github:stepbrobd/vscode-overlay/1fee7c2ca7e61e999ecb8d01a1654f0ff2bbe4b2' (2023-11-15)
  → 'github:stepbrobd/vscode-overlay/c18374a17c94b976448662acaaed34c95f66a19e' (2023-11-16)

fix build

add fh

readme update