The North Star is now truly one component — same behavior everywhere
Tapping the North Star now does the same thing on every page, the journal included: it opens the builder, with your exact sentence ready — tap any word to edit, then "This is it →" to save.
The journal's separate edit-in-place field is retired. One sentence, one look, one behavior, one place to edit — no more guessing what a tap will do on which page.
Your streak, rep counter, and backfill chips stay right where they were on the journal.