Show "✅ Post Sent!"-pill if post was sent successfully (IOS-234)

Maybe we could think about an error-message here, too?

Mastodon/Scene/HomeTimeline/HomeTimelineViewController.swift

@@ -332,6 +332,20 @@ extension HomeTimelineViewController {
                 }
             })
             .store(in: &disposeBag)
+
+        context.publisherService.statusPublishResult.prepend(.failure(AppError.badRequest))
+        .receive(on: DispatchQueue.main)
+        .sink { [weak self] publishResult in
+            guard let self else { return }
+            switch publishResult {
+            case .success:
+                self.timelinePill.update(with: .postSent)
+                self.showTimelinePill()
+            case .failure:
+                self.hideTimelinePill()
+            }
+        }
+        .store(in: &disposeBag)
     }
 
     override func viewWillAppear(_ animated: Bool) {

Mastodon/Scene/HomeTimeline/HomeTimelineViewModel.swift

@@ -33,7 +33,7 @@ final class HomeTimelineViewModel: NSObject {
     @Published var scrollPositionRecord: ScrollPositionRecord? = nil
     @Published var displaySettingBarButtonItem = true
     @Published var hasPendingStatusEditReload = false
-    var hasNewPosts = CurrentValueSubject<Bool, Never>(false)
+    let hasNewPosts = CurrentValueSubject<Bool, Never>(false)
     var timelineContext: MastodonFeed.Kind.TimelineContext = .home
 
     weak var tableView: UITableView?