Scriptcounter touchup: Fix end when deleting inventory
Prevent that annoying issue where new scroll list menu flashes in the bottom left corner briefly when created.\
Modernize LLPreviewScript

Should fix Fritigern's recent issues, seems to. (Mainly, the double clicking on script errors not working right thing)
Should also fix that issue someone has brought up in group chat about the delay in our external editor sync in comparison to V3
Introduce menu_avs_list.xml and use it for Active Speakers list, About Land's ban/allow lists, Group profile general tab list, and chat participants lists.
Change modes for llpanelvoiceeffect.*