LibWeb/CSS: Use correct property when looking up container-type

Author: https://github.com/stelar7
Commit: 0f3a9a6958
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/6700
Reviewed-by: https://github.com/gmta ✅

Libraries/LibWeb/CSS/ComputedProperties.cpp

@@ -1900,7 +1900,7 @@ ContainerType ComputedProperties::container_type() const
 {
     ContainerType container_type {};
 
-    auto const& value = property(PropertyID::Contain);
+    auto const& value = property(PropertyID::ContainerType);
 
     if (value.to_keyword() == Keyword::Normal)
         return container_type;