Auto merge of #14703 - canaltinova:perspective-transform, r=Wafflespeanut

Add gecko glue for perspective/transform properties

<!-- Please describe your changes on the following line: -->
To be able to add glue for these properties,  we needed to change their structs. They are moved from effects to box and added stylo glue.
This PR covers these properties:
- perspective
- perspective-origin
- backface-visibility
- transform-box
- transform-style
- transform-origin

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors

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- [X] These changes do not require tests because they are stylo changes

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components/style/properties/properties.mako.rs

@@ -1343,17 +1343,17 @@ impl ComputedValues {
             return transform_style::T::flat;
         }
 
-        if effects.transform_style == transform_style::T::auto {
+        if box_.transform_style == transform_style::T::auto {
             if box_.transform.0.is_some() {
                 return transform_style::T::flat;
             }
-            if let Either::First(ref _length) = effects.perspective {
+            if let Either::First(ref _length) = box_.perspective {
                 return transform_style::T::flat;
             }
         }
 
         // Return the computed value if not overridden by the above exceptions
-        effects.transform_style
+        box_.transform_style
     }
 
     pub fn transform_requires_layer(&self) -> bool {