Adds Blazor Web App standard login

WatchLog/Data/DatabaseModels/Global/StreamingPlatform.cs

@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace WatchLog.Data
+{
+    public class StreamingPlatform
+    {
+        [Key]
+        public int Id { get; set; }
+
+        [Required]
+        [MaxLength(100)]
+        public required string Name { get; set; }
+
+        [Required]
+        public string? PicturePath { get; set; }
+
+        [Required]
+        public required DateTime CreationTime { get; set; }
+
+        public DateTime? LastChange { get; set; }
+    }
+}