aTbRef - updated to remove old terminology

Reviewed and removed c.50 references to ‘text windows’ that refer (implicitly) to the pre-v6 UI text windows as opposed to the v6+ stand-alone text windows. As this also changed some note titles, I’ve updated the site list and uploaded the current TBX as a fresh zip.

Hopefully this will be less confusing for users who have never encountered the original (pre-v6) UI.