AO3-6378 update pseud page subtitle for consistency #4981

Job	Run time
rake db:otwseed	1m 12s
rspec spec/controllers	13m 21s
rspec spec/models	6m 8s
rspec --exclude-pattern 'spec/{controllers,models}/*/.rb'	8m 48s
cucumber features/admins	7m 23s
cucumber features/bookmarks	4m 40s
cucumber features/collections	7m 24s
cucumber features/comments_and_kudos	7m 50s
cucumber features/gift_exchanges	7m 10s
cucumber features/importing	2m 42s
cucumber features/other_a	13m 11s
cucumber features/other_b	6m 46s
cucumber features/prompt_memes_a	4m 5s
cucumber features/prompt_memes_b	3m 41s
cucumber features/prompt_memes_c	5m 23s
cucumber features/search	6m 46s
cucumber features/tag_sets	3m 57s
cucumber features/tags_and_wrangling	6m 43s
cucumber features/users	4m 56s
cucumber features/works	13m 4s
	2h 15m 10s

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