Use v2 of SDK

[Timac]

The plugin is using the v1 version of the SDK. You should update it to use v2:

• in the manifest.json, add "SDKVersion": 2,
• update the common files from the Mail.app plugin. You can find the latest version here: https://github.com/elgatosf/streamdeck-applemail/tree/master/Sources/Common . What is most likely causing the plugin not to work with the SDK v2 is that kESDSDKConnectSocketFunction has been changed.