iOS 1.2.1 - Better auto sync and sync indicator

ios/OpenClimb/Views/ProblemsView.swift

@@ -62,7 +62,25 @@ struct ProblemsView: View {
             .navigationTitle("Problems")
             .searchable(text: $searchText, prompt: "Search problems...")
             .toolbar {
-                ToolbarItem(placement: .navigationBarTrailing) {
+                ToolbarItemGroup(placement: .navigationBarTrailing) {
+                    if dataManager.isSyncing {
+                        HStack(spacing: 2) {
+                            ProgressView()
+                                .progressViewStyle(CircularProgressViewStyle(tint: .blue))
+                                .scaleEffect(0.6)
+                        }
+                        .padding(.horizontal, 6)
+                        .padding(.vertical, 3)
+                        .background(
+                            Circle()
+                                .fill(.regularMaterial)
+                        )
+                        .transition(.scale.combined(with: .opacity))
+                        .animation(
+                            .easeInOut(duration: 0.2), value: dataManager.isSyncing
+                        )
+                    }
+
                     if !dataManager.gyms.isEmpty {
                         Button("Add") {
                             showingAddProblem = true