Improve Cards complex interaction documentation example

[florent-andre]

A working menu in this example could be a good addendum to newbies.
Please find the associated PR here : #19166

[oliviertassinari]

Thanks for the feedback. We need to balance the complexity of the demos with the objective of it. I'm not sure making the 3 dots interactive would bring much value, when you can find the solution in the Menu docs page. Here, we make sure the dots are displayed at the right place, it should do 80% of the job.

[florent-andre]

okay I can understand.
But at the first newbie look this 3 dots with nothing seems like a bug or a missing part in this particular demo.
A light menu don't add so much complexity in this particular code IMO that is titled "complex interaction" demo ;).
Thanks for the great lib and all the job done, Regards.