Ensure 2 update per device_event on needing platforms

[BorisBoutillier]

Objective

• Aims to solve Button example is broken #11235
• Currently, on platforms that need part of the render app to be run on the main thread, applications running in Update::Reactive will see updates associated to a device event only be rendered on the next device event or after the Reactive delay.

Solution

• Ensure two updates are triggered per device_event on platforms that need it
• Adds a device_event_received_previous_update attribute to the WinitAppRunnerState

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Changelog

• Fixed: In applications using UpdateMode::Reactive, consequences of a device event are now properly rendered straightaway.

[mockersf]

#11720 is an alternative fix that I would prefer as it doesn't add platform conditionals

[BorisBoutillier]

Yes, #11720 is a better solution, my PR adds an additional cfg (that need to be kept in sync), and trigger an additional frame computation.

Happy to trash this one when the other is merged.

[BorisBoutillier]

Dropped in favor of better solution done in #11720 .