Add FantasqueSansMono Nerd Font as primary font to use, keep Iosevka
for now until I'm sure about it. Also add a few fun fonts (VictorMono
for it's ridiculous cursive italics, HeavyData because it's basically
illegible but looks fun to use for certain applications)
Move all nerdfont definition into a single package override in
stylix.nix, remove from fonts.packages list as stylix handles adding
this automatically
Move autoUpgrade, nix registry and stylix settings to their own files, only
import autoUpgrade on desktops and server
Add laptop system file to control power management
Move some bits from flake.nix to default.nix and desktop.nix where
appropriate
Evie Litherland-Smith