firefox: add naho as maintainer (#1442)

Although qutebrowser is my main browser, I occasionally use LibreWolf
and Tor Browser. Consequently, I am adding myself as a maintainer to
this rather important module.

Link: https://github.com/nix-community/stylix/pull/1442

modules/firefox/meta.nix

@@ -9,6 +9,7 @@
   maintainers = with lib.maintainers; [
     Flameopathic
     danth
+    naho
   ];
   description = ''
     This module supports [Firefox](https://www.mozilla.org/firefox/), in addition