Add a comment explaining why HelpDialog has seemingly redundant fields
Add a comment explaining why HelpDialog has seemingly redundant fields

philc/vimium,poacher2k/vimium,smblott-github/vimium,mrmr1993/vimium,smblott-github/vimium,decaffeinate-examples/vimium,willsALMANJ/vimium,gdh1995/vimium,willsALMANJ/vimium,decaffeinate-examples/vimium,mrmr1993/vimium,mrmr1993/vimium,philc/vimium,decaffeinate-examples/vimium,smblott-github/vimium,poacher2k/vimium,poacher2k/vimium,gdh1995/vimium,gdh1995/vimium,willsALMANJ/vimium,philc/vimium