Fix caricamento post prima login

salesbook.Shared/Components/Pages/Calendar.razor

@@ -492,6 +492,8 @@
     // Selezione giorno in settimana
     private async Task SelezionaData(DateTime day)
     {
+        if (IsLoading) return;
+        
         SelectedDate = day;
 
         var cacheInternalMonth = _internalMonth;
@@ -513,6 +515,8 @@
     // Selezione giorno dal mese (chiude la vista mese!)
     private async Task SelezionaDataDalMese(DateTime day)
     {
+        if (IsLoading) return;
+        
         SelectedDate = day;
         SliderAnimation = "collapse-animation";
         Expanded = false;

salesbook.Shared/Components/Pages/Home.razor

@@ -15,12 +15,20 @@
 @inject PreloadService PreloadService
 @inject IMessenger Messenger
 
-<SpinnerLayout FullScreen="true" />
+<SpinnerLayout FullScreen="true"/>
 
 @code
 {
     protected override async Task OnInitializedAsync()
     {
+        var lastSyncDate = LocalStorage.Get<DateTime>("last-sync");
+        if (!FormFactor.IsWeb() && NetworkService.ConnectionAvailable && lastSyncDate.Equals(DateTime.MinValue))
+        {
+            var returnPath = System.Web.HttpUtility.UrlEncode("/");
+            NavigationManager.NavigateTo($"/sync?path={returnPath}");
+            return;
+        }
+
         NetworkService.ConnectionAvailable = NetworkService.IsNetworkAvailable();
 
         await LoadNotification();
@@ -35,14 +43,6 @@
             Console.WriteLine($"Firebase init: {e.Message}");
         }
 
-        var lastSyncDate = LocalStorage.Get<DateTime>("last-sync");
-
-        if (!FormFactor.IsWeb() && NetworkService.ConnectionAvailable && lastSyncDate.Equals(DateTime.MinValue))
-        {
-            NavigationManager.NavigateTo("/sync");
-            return;
-        }
-
         _ = StartSyncUser();
         NavigationManager.NavigateTo("/Calendar");
     }
@@ -60,9 +60,6 @@
 
     private Task StartSyncUser()
     {
-        return Task.Run(() =>
-        {
-            _ = PreloadService.PreloadUsersAsync();
-        });
+        return Task.Run(() => { _ = PreloadService.PreloadUsersAsync(); });
     }
 }

salesbook.Shared/Components/Pages/Users.razor

@@ -42,7 +42,7 @@
     {
         <SpinnerLayout FullScreen="false"/>
     }
-    else if (GroupedUserList?.Count > 0)
+    else if (GroupedUserList.IsNullOrEmpty() || FilteredGroupedUserList.IsNullOrEmpty())
     {
         <Virtualize OverscanCount="20" Items="FilteredGroupedUserList" Context="item">
             @if (item.ShowHeader)