Update flake lock revisions and package settings

- Pin newer revisions for firefox‑addons, home‑manager, nixpkgs,
  noctalia‑shell and stylix.
- Enable Evolution in programs.
- Use Plex desktop override with QT_QPA_PLATFORM and comment out
  the plain version.
- Comment out settings.settingsVersion in noctalia config.
- Reduce plugin window width to 1100 and add columnCount = 2.

modules/core/packages/programs.nix

@@ -19,5 +19,6 @@ _: {
       #   biome
       # ];
     };
+    evolution.enable = true;
   };
 }