[Merge] lp:~ken-vandine/content-hub/appinfo_peers into lp:content-hub

[Michael Sheldon]

Review: Needs Information

Were we actually able to retrieve desktop file details for confined apps on the client side prior to this change? If so, should there also be an app armor change to disable this in future?
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https://code.launchpad.net/~ken-vandine/content-hub/appinfo_peers/+merge/272252
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