Can't center social icons or buttons in newsletter

[iAmSteveBeatty]

The social icons can't be centered, either working with one icon or the parent Social Icons block. (This may be another matter that's just beyond me, but once an icon is eliminated, say, LinkedIn, and then they realize they have an account there, how can I add a single icon to the existing group? )

Also, the Button block nor Buttons parent block don't offer a choice for alignment. This probably isn't as urgent because they default to centered, which is a good place for them. Just seems odd I don't have that alignment choice.

To reproduce
Start a newsletter.
Add Social Icons block
Note the lack of alignment options on the menu
Same with button(s)

[jeffersonrabb]

Social icon alignment resolved in #257