iOS 1.2.1 - Better auto sync and sync indicator

ios/OpenClimb/Views/SessionsView.swift

@@ -17,7 +17,25 @@ struct SessionsView: View {
             .navigationTitle("Sessions")
             .navigationBarTitleDisplayMode(.automatic)
             .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 {
                         EmptyView()
                     } else if dataManager.activeSession == nil {