feat(vcs): add jujutsu vcs to home manager config (#58)

machines/modules/users/tghanken/home-manager.nix

···
     userEmail = "[e-mail]";
   };
 
+  programs.jujutsu = {
+    enable = true;
+    settings = {
+      user = {
+        email = "[e-mail]";
+        name = "John Doe";
+      };
+    };
+  };
+
   programs.direnv = {
     enable = true;
     enableBashIntegration = true;