Vertical tab divider between pinned and normal tabs can't be dynamically positioned

At some point a few days ago I accidentally dragged the divider that separates the pinned and vertical tabs. As a result, for the last few days, I have been stuck with the divider being in a fixed position no matter how hard I try. The problem is that I use collapsed sidebar by default and can't reposition it for the collapsed tabs state, and as a result, there's a mismatch in how many pinned tabs I can see when hovered and when unhovered, among other issues If possible, I'd love to just reset the position to how it was before, that being that it would show maximum pinned tabs and scroll the normal tabs, and do so for both collapsed and uncollapsed tabs, but I haven't found a way yet I've tried dragging the divider to the very bottom, but that didn't work either and it'd eventually reset