Alt image setting

[etoledom]

This PR updates the Gutenberg reference to test the Alt image setting.
The main PR is found here: WordPress/gutenberg#13631

To test, refer to the gutenberg side PR.

(Updated GIF)

cc @iamthomasbishop

[koke]

The right-aligned text field looked good when static, but feels weird while typing. @iamthomasbishop what do you think?

[marecar3]

LGTM! @etoledom

[iamthomasbishop]

@koke I agree it's not perfect, but there are a number of considerations here and for the beta the alternatives aren't better, imo. I'd like to play with this in a test build before deciding to pivot. Some alternatives that come to mind:

• Left-align values: this causes other visual alignment issues
• Use two-line table-row style: sheet becomes much taller, not ideal

Long-term solution in my mind would be to iterate on this to utilize native table navigation/input patterns, for example:

• Android: when table row is tapped, show dialog for text entry
• iOS: show disclosure (> icon on right side of row, allow user to go down in hierarchy to a sub-page for text entry

Another option would be to stack a fresh sheet on top for entry, but that sounds like it could get visually disjointed if we start pulling sheets on top of sheets on top of sheets :)