flake.lock: Update (#325)

Flake lock file updates:

• Updated input 'home-manager':
    'github:nix-community/home-manager/de90ee24082bb8dd44145f5c733b807467856820?narHash=sha256-vnmUNXZVPL%2BADVoAN0FYy7fQq17UBQ54TNhFCt3PeZQ%3D' (2026-04-08)
  → 'github:nix-community/home-manager/e35c39fca04fee829cecdf839a50eb9b54d8a701?narHash=sha256-L5yKTpR%2BalrZU2XYYvIxCeCP4LBHU5jhwSj7H1VAavg%3D' (2026-04-10)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/68d8aa3d661f0e6bd5862291b5bb263b2a6595c9?narHash=sha256-vPKLpjhIVWdDrfiUM8atW6YkIggCEKdSAlJPzzhkQlw%3D' (2026-04-05)
  → 'github:NixOS/nixpkgs/4c1018dae018162ec878d42fec712642d214fdfa?narHash=sha256-ar3rofg%2BawPB8QXDaFJhJ2jJhu%2BKqN/PRCXeyuXR76E%3D' (2026-04-09)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: ipetkov