Merge pull request #139591 from siraben/leo-editor-mainprogram

leo-editor: add meta.mainProgram

pkgs/applications/editors/leo-editor/default.nix

···
     longDescription = "Leo is a PIM, IDE and outliner that accelerates the work flow of programmers, authors and web designers.";
     license = licenses.mit;
     maintainers = with maintainers; [ leonardoce ];
+    mainProgram = "leo";
   };
 }