c2b1b82b2f
Drops the left-margin reserve the marker used to get: the quest list goes back to its original indent and the marker tucks in to the left of whatever owns the head of the line -- the quest item button where there is one, the collapse button where there is not -- hanging over the tracker's left edge, and off it entirely at larger sizes. A marker that reaches past the edge is reparented above the scroll frame, which would otherwise clip it. It is also centred on the quest's whole text block rather than on the title alone. The block is added up from the line heights the tracker itself sets: measuring the frames with GetTop/GetBottom reads positions from a half-built tracker on login and flings the marker off it.