add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'InfomaniakCore'

non-Sendable type 'ApiFetcher' cannot be returned from actor-isolated implementation to caller of protocol requirement 'getApiFetcher(for:token:)'; this is an error in the Swift 6 language mode

static property 'shared' is not concurrency-safe because non-'Sendable' type 'UserDefaults' may have shared mutable state; this is an error in the Swift 6 language mode

reference to static property 'current' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode

reference to static property 'current' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode

reference to static property 'current' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode

reference to static property 'current' is not concurrency-safe because it involves shared mutable state; this is an error in the Swift 6 language mode

static property 'shared' is not concurrency-safe because non-'Sendable' type 'UserDefaults' may have shared mutable state; this is an error in the Swift 6 language mode

add '@preconcurrency' to suppress 'Sendable'-related warnings from module 'InfomaniakCore'