Fix issue with viewport interaction ordering and viewport matrix changed handler (#695)

* fix for ctrl+mouse-wheel to cycle transform modes in the viewport

* ensure correct callback function is invoked

* remove redundant check in CameraInput

Gems/Atom/RPI/Code/Source/RPI.Public/ViewportContext.cpp

@@ -40,9 +40,10 @@ namespace AZ
             {
                 m_projectionMatrixChangedEvent.Signal(matrix);
             });
+
             m_onViewMatrixChangedHandler = ViewportContext::MatrixChangedEvent::Handler([this](const AZ::Matrix4x4& matrix)
             {
-                m_projectionMatrixChangedEvent.Signal(matrix);
+                m_viewMatrixChangedEvent.Signal(matrix);
             });
 
             SetRenderScene(renderScene);