Network Admin: Actions and messaging on row actions in MS Sites List table should be handled better

[jeremyfelt]

There are a few changes we can make to the row actions attached to sites in the MS Sites List Table that can make for a cleaner process.

[jeremyfelt]

32963.diff does a few things:

• Simplify the URLs used for row actions to remove messaging and site name (domain).
• Add messaging to the managed list of actions that handles the request to use for the confirmation page.
• Lookup the site address from the passed site ID rather than using the domain passed in the URL.

[jeremyfelt]

In 33173:

Add better handling for actions and messaging in MS Sites List Table row actions

• Simplify URLs used for row actions to remove messaging and site domain/path.
• Use confirmation messaging from a managed list of actions when handling the request.
• Find the site address from the site ID rather than using information passed in the URL.

Fixes #32963.

[jeremyfelt]

In 33194:

Handle MS Sites bulk action verification separately from individual actions.

After [33173], bulk actions would not process due to broken verification of the bulk-sites action. This reintroduces the proper action and treats bulk actions differently than individual site actions.

See #32963.