show the threads on secondary device after syncing contacts

SignalServiceKit/src/Loki/Protocol/Multi Device/MultiDeviceProtocol.swift

@@ -154,6 +154,8 @@ public final class MultiDeviceProtocol : NSObject {
     @objc(getAutoGeneratedMultiDeviceFRMessageForHexEncodedPublicKey:in:)
     public static func getAutoGeneratedMultiDeviceFRMessage(for hexEncodedPublicKey: String, in transaction: YapDatabaseReadWriteTransaction) -> FriendRequestMessage {
         let thread = TSContactThread.getOrCreateThread(withContactId: hexEncodedPublicKey, transaction: transaction)
+        thread.shouldThreadBeVisible = true
+        thread.save(with: transaction)
         let result = FriendRequestMessage(timestamp: NSDate.ows_millisecondTimeStamp(), thread: thread, body: "Please accept to enable messages to be synced across devices")
         result.skipSave = true // TODO: Why is this necessary again?
         return result