update && remove floorp & stylix && mkForce nfv theme && change kdenlive pkg name cause changed upstream

modules/nix/groups/desktop.nix

@@ -16,9 +16,7 @@ in
       steam.enable = true;
       prism.enable = true;
       firefox.enable = true;
-      floorp.enable = true;
       librewolf.enable = true;
-      stylix.enable = true;
       audio.enable = true;
       office.enable = true;
       element.enable = true;