cant set it to 144 because either the dGPU in this laptop or the MST hub
its connected through doesn't have the bandwidth, and i get weird
artifacting, just like i did on hyprland.
it was at 60Hz before btw, so this should make animations look nicer
in doing this niri decided it needed to rewrite the mimeapps file, so i
added the imperative entries that had appeared in there to home.nix and
now its all done properly :3