Feature request: Add AdSense data when viewing Detailed Page Stats

## Feature Description

Hi, we have mapped Analytics and AdSense in Site Kit (currently v1.20) and were surprised to see that in the Detailed Page Stats, no AdSense data shows to see how much $$$ each individual post made, as per AdSense stats. The data also doesn't show up in the WP admin bar widget.

The only place where AdSense data does show is the main Site Kit Dashboard view where only a single Earnings widget shows the totals for the given time period. This isn't very useful - the AdSense integration would be far more useful if the numbers were included in post stats.

Or am I missing something?

Note: I originally mapped the Analytics view without AdSense data, but have since updated Site Kit Analytics config to use the correct view, but the AdSense data is still not there. I'm also still seeing this to the right of the Earnings widget. One would assume this giant banner should go away once you've mapped the right view, but it's still there:

Thank you.

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## Acceptance criteria

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## Implementation Brief

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### Test Coverage

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### Visual Regression Changes

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## QA Brief

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## Changelog entry

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The requested entry points are Detailed Page Stats and the WP admin bar widget; the issue names no files or tests, and its acceptance criteria and implementation brief are empty. Start by tracing those views and the existing AdSense Earnings widget, then verify that post-level AdSense values appear in both requested locations and that the outdated configuration banner behavior is addressed.

Written by the indexing model from the issue text.