Added creation/modification confirmation

src/HopFrame.Web/Components/Dialogs/HopFrameEditor.razor

@@ -256,9 +256,14 @@
         }
 
         StateHasChanged();
-        return _validationErrors
+        var valid = _validationErrors
             .Select(err => err.Value.Count)
             .All(c => c == 0);
+
+        if (!valid) return false;
+        var dialog = await Dialogs.ShowConfirmationAsync($"Do you really want to {(_currentlyEditing ? "edit" : "create")} this entry?");
+        var result = await dialog.Result;
+        return !result.Cancelled;
     }
     
     private enum InputType {

src/HopFrame.Web/Models/RelationPickerDialogData.cs

@@ -2,7 +2,7 @@
 
 namespace HopFrame.Web.Models;
 
-public class RelationPickerDialogData(TableConfig sourceTable, object? current) {
+public sealed class RelationPickerDialogData(TableConfig sourceTable, object? current) {
     public object? Object { get; set; } = current;
     public TableConfig SourceTable { get; init; } = sourceTable;
 }