android: delivery receipts (#2705)

* android: delivery receipts

* receipts toggle in privacy and in contact info (crashes), double tick in chat

* double tick image

* SetDeliveryReceiptsView

* small changes

* update users

* remove import

* fixing crash

* prevent ConcurrentModificationException

* fix enable all users

* android enable all users

---------

Co-authored-by: spaced4ndy <8711996+spaced4ndy@users.noreply.github.com>
Co-authored-by: Avently <7953703+avently@users.noreply.github.com>

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -1133,7 +1133,6 @@ func startChat(refreshInvitations: Bool = true) throws {
             m.onboardingStage = [.step1_SimpleXInfo, .step2_CreateProfile].contains(savedOnboardingStage) && m.users.count == 1
                                 ? .step3_CreateSimpleXAddress
                                 : savedOnboardingStage
-            // TODO don't show on first start
             if m.onboardingStage == .onboardingComplete && !privacyDeliveryReceiptsSet.get() {
                 m.setDeliveryReceipts = true
             }