feat: add syntax and themes to container

flake.nix

@@ -71,7 +71,13 @@
           };
 
           config = {
-            Entrypoint = [ "/bin/karnaugh" ];
+            Entrypoint = [
+              "/bin/karnaugh"
+              "--syntax-root"
+              "${packages.syntax}"
+              "--themes-root"
+              "${packages.themes}"
+            ];
           };
         };
         packages.default = packages.karnaugh;