Intent filters: Add analytics

This adds analytics to the intent filters so we know how often users
take advantage of the URL matching we do for viewing guides, devices,
and search results.
Merge intent-filters--add-analytics (#158) into master

Intent filters: Add analytics

This adds analytics to the intent filters so we know how often users
take advantage of the URL matching we do for viewing guides, devices,
and search results.

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Original issue: Add analytics to intent filters
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It would be nice to see how many people actually open guides in the app by navigating to a guide URL.