- The in-book pointerdown dismiss listener lived in the reflowable-only
block, so PDF taps never closed the selection popover — hoist it so
every content doc (EPUB, PDF, comics) dismisses on tap.
- createHighlight hardcoded note_text: '' — 'Highlight with note' saved
the highlight but silently dropped the note. Send p.note (and pass it
to the EPUB overlayer).
- saveHighlightChanges collapsed the note editor on every save; color
dots in create mode created a highlight outright. With the editor
open, color dots now just recolor (create) or recolor-and-save with
the editor kept open (edit).