Reduces first-run cognitive load. Save / Copy / Clear / Export now appear only
once the user has a transcript or is recording, sliding in via animate-fade-in
(brand --duration-ui + ease-out-quart). Template and Extract Tasks remain
always-visible because they shape transcription rather than acting on completed
content.
Empty state now leads with the catchphrase as a brand statement
(font-display italic 28px) with the hotkey hint demoted to body-font tertiary.
EmptyState gains an optional headline prop; callers without it render unchanged.
