Add support for in email notices - Enable Conversion events (views within a section)

[benbowler]

Feature Description

Update the email reporting infrastructure to support in email report notices. The initial notices will be:

• Analytics set up (views at the top of the template)
• Enable Conversion events (views within a section) this ticket

Email notices should be flexible for future registered notifications. Notices should be dismissed if clicked or after being included in two email reports.

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Do not alter or remove anything below. The following sections will be managed by moderators only.

Acceptance criteria

• Email reports support section-level notices registered via the notice infrastructure implemented in #11843; notices can target specific sections and render inline within that section.
• The "Enable conversion events" notice renders inside the conversions section when plugin conversion tracking events are not enabled for the recipient's site/user context (and Analytics module is shared with/user has access to).
• The notice CTA routes through the email link proxy, dismisses the notice for the user, and redirects to the dashboard location to enable conversion events (Analytics module edit settings screen where conversion toggle is located).
• Notices are suppressed once dismissed and are automatically dismissed after they have appeared in two sent reports for that user.
• If conversion events are already enabled or the user cannot act, the notice does not render and the rest of the section remains unchanged.

Implementation Brief

• [ ]

Test Coverage

QA Brief

Changelog entry

[eugene-manuilov]

AC ✔️