feat: add typing practice tools to system packages

Include klavaro and tipp10 in the system package list. These additions provide tools for users to improve their typing skills.

systems/x86_64-linux/x1/default.nix

@@ -37,6 +37,8 @@ with lib.metacfg;
     attic-client
     ollama
     piper
+    klavaro
+    tipp10
   ];
 
   zramSwap.enable = true;