ios: delivery receipts (#2701)

* ios: delivery receipts wip

* remove state variable

* fix 1 toggle

* fix 2nd toggle

* undo some changes, remove prints, remove commented code

* remove diff

* icon color

* comment

* refactor, double tick

* remove color from spaces

* update messages

* do not show Enable delievery receipts screen if any of the profiles was enabled

* update footer

* fix text

* better double ticks

* softer double tick

* improve double ticks

* a bit bigger gap in double tick

---------

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

apps/ios/Shared/Model/SimpleXAPI.swift

@@ -159,6 +159,18 @@ func apiSetActiveUserAsync(_ userId: Int64, viewPwd: String?) async throws -> Us
     throw r
 }
 
+func apiSetAllContactReceipts(enable: Bool) async throws {
+    let r = await chatSendCmd(.setAllContactReceipts(enable: enable))
+    if case .cmdOk = r { return }
+    throw r
+}
+
+func apiSetUserContactReceipts(_ userId: Int64, userMsgReceiptSettings: UserMsgReceiptSettings) async throws {
+    let r = await chatSendCmd(.apiSetUserContactReceipts(userId: userId, userMsgReceiptSettings: userMsgReceiptSettings))
+    if case .cmdOk = r { return }
+    throw r
+}
+
 func apiHideUser(_ userId: Int64, viewPwd: String) async throws -> User {
     try await setUserPrivacy_(.apiHideUser(userId: userId, viewPwd: viewPwd))
 }
@@ -1121,6 +1133,7 @@ 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
             }