add helperfunction to crop slides

modules/home/zsh/default.nix

@@ -60,6 +60,7 @@ in
           cat = "bat --theme=\"$(defaults read -globalDomain AppleInterfaceStyle &> /dev/null && echo 'gruvbox-dark' || echo 'gruvbox-light')\"";
           diff = "delta";
         };
+        profileExtra = builtins.readFile ./functions.zsh;
       };
       fzf = {
         enable = true;
@@ -84,6 +85,10 @@ in
           python.disabled = true;
         };
       };
+      nix-your-shell = {
+        enable = true;
+        enableZshIntegration = true;
+      };
     };
   };