Add Move up/down controls for actual rooms without changing bot or folder
ordering. Preserve default pin/activity ordering until an explicit move,
retain hidden room slots, and persist Desktop-local order through room
updates, mirror merges, and hydration. No membership or routing writes.
Adapted narrowly from the group ordering idea in archived
NousResearch/Hermes-Bot-Mode#105 by @onuraycicek; rename already exists.
Co-authored-by: Onur Aycicek <onur.m.aycicek@gmail.com>
Teknium