fix(card): add card content selectors

[mina-skunk]

issue #17487

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[mina-skunk]

@googlebot I signed it!

[mina-skunk]

@googlebot I signed it!

[googlebot]

CLAs look good, thanks!

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[jelbourn]

LGTM

[jelbourn]

For the commit message: I would actually consider this a fix rather than a feature since it should have always done this

[mina-skunk]

commit message changed

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