Allow changing the site name on authentication service

Bug Description

Users are presently unable to modify the name listed under “Manage Sites” >

The initial “Site Name” is also used after the following:

1. Revoking access (via Site Kite dashboard > Manage Sites > Remove Access > Reset Site Kit
2. Changing “Site Name” in a users WP General Settings
3. Revoking access via https://myaccount.google.com/permissions?pli=1
4. Attempting setup once more

Original support topic: https://wordpress.org/support/topic/change-the-site-name/

Supporting video

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Acceptance criteria

• Changes to the Site Title should be synchronized to the authentication service on-the-fly

Implementation Brief

• In Authentication::register(), add the same $option_updated callback onto update_option_blogname, just like the existing ones for home + site URL

QA Brief

Changelog entry

• Update registered site name on authentication service when it is updated in WordPress.

[aaemnnosttv]

@jamesozzie this name should be updated automatically now any time their Site URLs change:

@felixarntz perhaps we should extend this functionality to include changes to the Site Title as well?

[ShahAaron]

@aaemnnosttv I probably didn’t explain what I did very well

This time I strictly followed your steps and the new site title was shown on the list of sites for the authentication service