feat(moderation): manage waiting room submenu and guest access toggle

feat(moderation): manage waiting room submenu and guest access toggle

Closes #3349 (closed)

depends on: https://git.opentalk.dev/opentalk/backend/services/roomserver/-/merge_requests/1090 & https://git.opentalk.dev/opentalk/backend/services/controller/-/merge_requests/2529