feat(shell): add atuin

shell/atuin.nix

@@ -0,0 +1,16 @@
+{ ... }:
+
+{
+  programs = {
+    atuin = {
+      enable = true;
+      enableZshIntegration = true;
+      settings = {
+        auto_sync = true;
+        sync_frequency = "5m";
+        sync_address = "https://atuin.molez.org";
+        update_check = false;
+      };
+    };
+  };
+}

shell/default.nix

@@ -9,6 +9,7 @@
   ];
 
   imports = [
+    ./atuin.nix
     ./bat.nix
     ./carapace.nix
     ./direnv.nix