add self to maintainers list and update maintainer

maintainers/maintainer-list.nix

···
     github = "jonafato";
     name = "Jon Banafato";
   };
+  jonathanreeve = {
+    email = "[e-mail]";
+    github = "JonathanReeve";
+    name = "Jonathan Reeve";
+  };
   joncojonathan = {
     email = "[e-mail]";
     github = "joncojonathan";

pkgs/applications/kde/dragon.nix

···
   meta = {
     license = with lib.licenses; [ gpl2 fdl12 ];
     description = "A simple media player for KDE";
-    maintainers = [ lib.maintainers.ttuegel ];
+    maintainers = [ lib.maintainers.jonathanreeve ];
   };
   nativeBuildInputs = [ extra-cmake-modules kdoctools ];
   propagatedBuildInputs = [