fix: impermanence only for lenovo-laptop

Signed-off-by: Reputable2722 <153411261+Reputable2772@users.noreply.github.com>

Author: Reputable2772

System/Common/Misc/default.nix

@@ -3,7 +3,6 @@
     ./appimage.nix
     ./environment.nix
     ./fhsenv.nix
-    ./impermanence.nix
     ./misc.nix
     ./nh.nix
     ./nix.nix

System/Lenovo-Laptop/Misc/default.nix

@@ -2,6 +2,7 @@
   imports = [
     ./bitlocker.nix
     ./fonts.nix
+    ./impermanence.nix
     # ./lts-kernel.nix
     ./power.nix
     ./virtualisation.nix