Root rows: EntriesView passes rowIndex from entries.map to EntryRow,
which applies entry-row-outer--light/dark. Retires both nth-child stripe
blocks so skeleton rows can never shift the first real entry to dark.
Skeleton rows keep a :not(.entry-row-outer) nth-child fallback.
Child rows: colours changed from the warm root palette (paper-3/#f2ede5)
to cooler near-whites (#fafaf8/#f2f0ec) so children are visually distinct
from their parent row regardless of which stripe the parent sits on.
