message: fix(chunk): fix forEachWithIndexF
diff: @@ -32,7 +32,7 @@ export const forEachWithIndexF = P.implementForEachWithIndexF<[URI<ChunkURI>]>()
  base = G.map(
  ({ tuple: [bs, b] }: Tp.Tuple<[Chunk.Chunk<typeof _.B>, typeof _.B]>) =>
  Chunk.append_(bs, b)
  - )(G.both(f(k, fa[k]!))(base))
  + )(G.both(f(k, Chunk.unsafeGet_(fa, k)!))(base))
  }
  return base
  }
  