Stale device configurations can live within processes after Forget Device is pressed

[qdot]

Had people hit some issues with the Solace Pro not showing capabilities correctly when connecting in v2.6.4 after using <= v2.6.3. This isn't real surprising since we don't handle capabilities updates correctly for devices that already have user configs since v2.6.1 (a config v3 issue).

Fix from Discord:

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For everyone that had a Lovense Solace Pro they had already hooked up to Intiface Central that is now not seeing Linear capabilities in v2.6.4, there is a bug that requires a workaround:

• Stop the server.
• Go to the devices tab.
• Hit "Forget Device" under the solace pro in the device list.
• Close and reopen intiface (THIS STEP IS EXTREMELY IMPORTANT)
• Make sure the Solace Pro is not in the disconnected devices list on the Devices Tab
• Start the server again
• Scan for devices on the devices tab.

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For this bug specifically, we shouldn't require a process shutdown in the middle of these steps. Something, most likely behind the Rust FFI barrier, is holding the device in memory even after we call Forget up front.