Make the @as casts actually apply

emmylua only parses the inline cast as `--[[@as T]]`, the spaced form
`--[[ @as T ]]` is treated as a plain comment, so all 149 of them were
doing nothing.

LuaGuiElement.style is a union because a style name can be assigned to
it, so reading it back needs the cast.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

exp_gui/module/data.lua

@@ -154,7 +154,7 @@ end
 --- @param scope string
 --- @return GuiData
 function GuiData.get(scope)
-    return GuiData._scopes[scope] --[[ @as GuiData ]]
+    return GuiData._scopes[scope] --[[@as GuiData]]
 end
 
 --- Used to clean up data from destroyed elements