docs: Describe combining ref forwarding with animated

[gpoole]

Why

Resolves #1639 by documenting an issue with combining animated with forwardRef and explaining how to work around it.

What

I've updated the documentation to describe the problem in detail with examples and describe a workaround.

Checklist

• Documentation updated
• Ready to be merged

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Sandbox	Source
spring-card	Configuration
spring-goo-blobs	Configuration
spring-flip-card	Configuration
spring-slide	Configuration
spring-draggable-list	Configuration
spring-cards-stack	Configuration
spring-viewpager	Configuration
spring-simple-transition	Configuration
spring-image-fade	Configuration
spring-list-reordering	Configuration
spring-masonry	Configuration
spring-animating-auto	Configuration
spring-multistage-transition	Configuration
spring-chain	Configuration
spring-svg-filter	Configuration
spring-css-keyframes	Configuration
spring-tree	Configuration
spring-notification-hub	Configuration
initial-rocket	Configuration
spring-notification-hub	Configuration
spring-notification-hub	Configuration
romantic-lovelace-1zwvv	Issue #1639

[joshuaellis]

People who update documentation are the real MVP. Thanks for the contribution! ⭐

[gpoole]

Thanks! Thanks @kindoflew for your research and the workaround.