Simplify prefix check in MemoryKvStore.list() using prefix.every()

      // Check prefix match

      if (prefix != null) {

        if (key.length < prefix.length) continue;

        let matches = true;

        for (let i = 0; i < prefix.length; i++) {

          if (key[i] !== prefix[i]) {

            matches = false;

            break;

          }

        }

        if (!matches) continue;

        if (!prefix.every((p, i) => key[i] === p)) continue;

      }

      const [value, expiration] = entry;