claws: activation calendrier + correcteur orthographe

desktop/desktop.nix

@@ -52,7 +52,7 @@ in
   ];
 
   nixpkgs.config.packageOverrides = pkgs: {
-    clawsMail = pkgs.clawsMail.override { enablePluginFancy = true; };
+    clawsMail = pkgs.clawsMail.override { enablePluginFancy = true; enablePluginVcalendar = true; enableSpellcheck = true;};
     mumble = pkgs.mumble.override { pulseSupport = true; };
   };