Social elements don't have text content

[wspwebben]

Social elements in mjml have slot, which makes them perfect to display an 'icon + text' pattern

Like this: mjmlio/mjml#1663
Or this: https://mjml.io/try-it-live/rJVDg1MBD

Currently I didn't find a way to put a text near a social icon nor with a trait, nor a text component

Moreover, if you import a mjml code from try-it-live above into the grapesjs, you'll get a tree with a social icon and a text in a layer manager, but the text is not visible on the canvas:

I found an issue from 2017, which shows there was an option to set a text, but there is no that field now

#44