script: Allow for implicit cx for setters (#43524)

Rather than specifying a cx for every single CSS property from Stylo, we
instead make it implicit. This allows us to remove the `CanGc::note()`
from the macro and pass in the `cx` as normal.

We can use a similar approach for setters in other elements where we use
the setter macros.

Part of #42812

Testing: It compiles

Signed-off-by: Tim van der Lippe <tvanderlippe@gmail.com>

components/script/devtools.rs

@@ -610,10 +610,10 @@ pub(crate) fn handle_modify_rule(
 
     for modification in modifications {
         let _ = style.SetProperty(
+            cx,
             modification.name.into(),
             modification.value.into(),
             modification.priority.into(),
-            CanGc::from_cx(cx),
         );
     }
 }