Ticket created from upstream issue: https://github.com/389ds/389-ds-base/issues/7021

*Issue Description*
nsslapd-mdb-max-size accepts value in bytes. But it can't be any value, it should be a multiple of the page size, which can vary (4K, 16K, 64K on different architectures).

• dsconf sets the lmdb database maximum size (in bytes).
• And in the WebUI max size is specified in megabytes.

*Package Version and Platform:*

• Package and version: 389-ds-base-2.5.2-2.el9_5.x86_64

*Expected results*
DS tools should be consistent and accept values with unit suffixes/