packages: rename deprecated xorg.libXdamage to libxdamage

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -24,8 +24,8 @@ nix build .#nixosConfigurations.magicman.config.system.build.toplevel
 nix develop
 ```
 
-If config clearly only affects one host, bulding for just the relevant host is enough.
+If config clearly only affects one host, building for just the relevant host is enough.
-Otherwise, build both.
+Otherwise, build both. **Always ask before building gunter** — it takes a long time.
 
 If moving things around, you can use `nix eval` before and after changes to check that things remain the same.
 ```

home/packages/default.nix

@@ -115,7 +115,7 @@ in
     (lutris.override {
       extraLibraries = pkgs: [
         nspr
-        xorg.libXdamage
+        libxdamage
       ];
     })
   ];