could we allow users overwrite the trigger condition of the hidden tabs' dropdown ?

[vincentLiuxiang]

Hi all, I met a problem with the hidden tabs' dropdown trigger logic

By default, we currently use hover to trigger the dropdown popup, but this is not a good practice I think, because the dropdown will be hidden soon once the mouse leaves the moreIcon or dropdown element.

This will make it difficult for users to switch to the tab they want because the dropdown can easily be hidden.

But, if the trigger condition is click it will be better.

I have already raised a PR to support this feature.