Restructure store and payment settings (#2995)

Co-authored-by: Kukks <evilkukka@gmail.com>

BTCPayServer/Models/StoreViewModels/GeneralSettingsViewModel.cs

@@ -0,0 +1,25 @@
+using System.ComponentModel.DataAnnotations;
+using BTCPayServer.Validation;
+
+namespace BTCPayServer.Models.StoreViewModels
+{
+    public class GeneralSettingsViewModel
+    {
+        
+        [Display(Name = "Store ID")]
+        public string Id { get; set; }
+        
+        [Display(Name = "Store Name")]
+        [Required]
+        [MaxLength(50)]
+        [MinLength(1)]
+        public string StoreName { get; set; }
+
+        [Uri]
+        [Display(Name = "Store Website")]
+        [MaxLength(500)]
+        public string StoreWebsite { get; set; }
+        
+        public bool CanDelete { get; set; }
+    }
+}