refactor: move utils to a separate file

modules/user/packages/cs_utils.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }: {
+  home.packages = with pkgs; [
+    burpsuite
+    binwalk
+    exiftool
+  ];
+}

user/chest/home.nix

@@ -1,10 +1,11 @@
 { pkgs, pkgs-fixed, host, ... }: {
+  imports = [
+    ../../modules/user/packages/cs_utils.nix
+  ];
+
   disabledModules = [ ../../modules/user/packages/coding.nix ];
   home.packages = with pkgs; [
     nautilus
-    burpsuite
-    binwalk
-    exiftool
     python3
     pkgs-fixed.jetbrains.pycharm-community
   ];