Social Icons: Change the block placeholder and use a button about gutenberg

[t-hamano]

Thank you for your suggestion.

The new 'Add' button should show when first inserting the empty block and always shown at the end when the block is selected and being edited:

The two inserter buttons for inserting blocks feel a little strange to me since they have the same role.

The approach I suggest is to automatically insert one Social Link block when you insert a Social Links block:

The only block that can be included in a Social Links block is a Social Link block, and its initial behavior is the same as that of a Buttons block:

And if no Social Icon block exists, it will only show the default inserter:

This is also similar to the current Buttons block behavior:

Are there any accessibility concerns with this approach? Whichever direction we go in, I feel it's better to unify the behavior of the social icon block and the button block.

[t-hamano]

As another example, the specifications for the navigation block are as follows:

When a block is not selected: A dot border is displayed.

When a block is selected: A large inserter button is displayed.

[richtabor]

I think this is along what I was suggesting previously, by always having an icon inserter to the right of the icons, when interacting with the block.

#56259 (comment)

[afercia]

The two inserter buttons for inserting blocks feel a little strange

I agree. I'm unsure whether the black 'plus' ineerter should be kept. It is worth noting that right now it is not operable with a keyboard after a first social link has been added. See #60120
This block is not operable with a keyboard. As such, either we fix the inserter or we should replace it.