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/home/noctalia/default.nix

@@ -10,7 +10,7 @@
       calendarSupport = true;
     };
     systemd.enable = true;
-    settings.settingsVersion = lib.mkForce 46;
+    # settings.settingsVersion = lib.mkForce 46;
   };
 
   imports = [