update: system update & refactor

# Breaking Changes
- sops location movod to "system/dev/<dev-name>/sops/sops-conf.nix"
- flake devices declaration changes
- whole flake update

system/dev/dn-lap/common/boot.nix

@@ -0,0 +1,14 @@
+{ pkgs, ... }:
+
+{
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.loader.systemd-boot.enable = true;
+
+  # Enable F keys in some wireless keyboard (Ex. neo65)
+  boot.extraModprobeConfig = ''
+    options hid_apple fnmode=2
+  '';
+
+  boot.initrd.systemd.enable = true;
+  boot.initrd.kernelModules = [ "i915" ];
+}