Surveys: Allow targeting by device type

[Phanatic]

Problem description

Customers would like to target their surveys by device type in the request.
Currently, we have a Latest Device Type person property which is asynchronous and doesn't always work since it uses the last URL visited by a person.

We need to introduce something like the URL targeting properties that we have right now.

[abigailbramble]

+1 https://posthoghelp.zendesk.com/agent/tickets/21364

[marandaneto]

a workaround for now would be calling the surveys API manually when you are on the desired device type (renderSurvey)
https://github.com/PostHog/posthog-js/blob/50f08e979ff5daeed10c29cd22281c26a9e29e87/src/posthog-core.ts#L1262-L1265

[danielbachhuber]

https://posthoghelp.zendesk.com/agent/tickets/21678 wants targeting by device type for no-code web experiments

[marandaneto]

dupe here with more context #27347