refactor: nixify / clean dots config

home/hosts/andromache/default.nix

@@ -45,6 +45,7 @@
   };
   keyboard.vortexCore.enable = true;
   keepassxc.enable = true;
+  mpv.enable = true;
   music.enable = true;
   newsboat.enable = true;
   nvim.enable = true;

home/hosts/astyanax/default.nix

@@ -38,6 +38,7 @@
   };
   k8s.k9s.enable = true;
   keepassxc.enable = true;
+  mpv.enable = true;
   music.enable = true;
   newsboat.enable = true;
   my.xdg.enable = true;