WoW Interface skin is currently broken

[saksala]

Game and Details! version
WoW Classic (SoD), 20240313.12550.156

Describe the bug
Fresh install of the addon, enable WoW Interface skin.
Breaks the window, gives a lua error.

Lua Error
Message: Interface/AddOns/Details/Libs/DF/dropdown.lua:369: Details! Framework: dropdown DetailsOptionsWindowTab2Widget2 error: Interface/AddOns/Details/classes/class_instance.lua:3254: bad argument #1 to 'SetSize' (Usage: self:SetSize(x, y))
Time: Wed Mar 13 21:42:09 2024
Count: 1
Stack: Interface/AddOns/Details/Libs/DF/dropdown.lua:369: Details! Framework: dropdown DetailsOptionsWindowTab2Widget2 error: Interface/AddOns/Details/classes/class_instance.lua:3254: bad argument #1 to 'SetSize' (Usage: self:SetSize(x, y))
[string "=(tail call)"]: ?
[string "=[C]"]: ?
[string "=[C]"]: in function `error'
[string "@Interface/AddOns/Details/Libs/DF/dropdown.lua"]:369: in function <Interface/AddOns/Details/Libs/DF/dropdown.lua:363>
[string "@Interface/AddOns/Details/Libs/DF/dropdown.lua"]:602: in function <Interface/AddOns/Details/Libs/DF/dropdown.lua:594>

Locals: (*temporary) = "LeftButton"
(*temporary) = defined =[C]:-1

[Flamanis]

#694 fixes