Jetpack Backup: add tracking to links

[jeherve]

Add tracking and track source URL to outgoing links in the different Backup product components.

See #14027 (comment) and #14027 (comment)

Do we need to add tracking to that link, maybe via getUpgradeUrl?

Should we add tracking to all those buttons? We have analytics.tracks.recordJetpackClick that can help you there, as I think ideally we'd want to be able to follow where people are going form there.

[robertf4]

@jeherve, the outgoing links are built using getUpgradeUrl now. Does that suffice for tracking, or do we need to add further tracking via recordJetpackClick? Only thing I could think of for that would be tracking the toggle between realtime and daily.

[jeherve]

I would recommend having both. We tend to usually track both sides. getUpgradeUrl builds the query strings that will allow redirecting to the right place (and potentially track affiliates) from Jetpack.com; recordJetpackClick registers a Tracks event that we can use in funnels (and thus see if we lose folks between wp-admin and Calypso).

Only thing I could think of for that would be tracking the toggle between realtime and daily.

I could personally see tracking on the "Which one do I need?" link, and the main Upgrade button (where we could pass info about what option was picked as a prop).

[jeherve]

Fixed in #14103