Bug(documentation): CSS variables tables in the documentation are not showing

[hbuchel]

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On which framework/platform are you having an issue?

React

Which UI component?

Primitive components

How is your app built?

next.js

What browsers are you seeing the problem on?

No response

Which region are you seeing the problem in?

No response

Please describe your bug.

I noticed when looking at this issue #4977 that the CSS variables tabs for our primitives aren't showing the available css custom properties. We should fix this so it's easier to find what properties can be overridden for each primitive via css.

What's the expected behaviour?

A table of css custom properties should show when I click on the CSS variables tab.

Help us reproduce the bug!

Visit any primitives Target classes section https://ui.docs.amplify.aws/react/components/alert#target-classes

Code Snippet

// Put your code below this line.

Console log output

No response

Additional information and screenshots

No response