Fix Asset Cache Verification - TGUI Bugfix

BYOND is injecting html to load js shims into json files returned by xhr. this will get fixed in a later byond release, but this disables the functionality for the asset cache skin control today.

Fix to be removed once the HTML injection is removed from asset cache (pending a BYOND change).

interface/skin.dmf

@@ -1145,6 +1145,7 @@ window "mainwindow"
 		anchor1 = none
 		anchor2 = none
 		is-visible = false
+		auto-format = false
 		saved-params = ""
 	elem "hotkey_toggle"
 		type = BUTTON