docs-bug(button): Icon button overrides and fab button overrides are missing in styling tab

[shhdharmen]

Documentation Feedback

Icon button overrides and fab button overrides were present in v19 documentation, but it's missing in v20 docs.

Link to v19 where it was present: https://v19.material.angular.dev/components/button/styling#:~:text=Tokens%20supported%20by%20fab%2Doverrides

Affected documentation page

https://material.angular.dev/components/button/styling