Implemented ability to leave a rating (up to 5 stars) and a text review (not UI supported until v0.2).

API/DTOs/UpdateSeriesRatingDto.cs

@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace API.DTOs
+{
+    public class UpdateSeriesRatingDto
+    {
+        public int SeriesId { get; init; }
+        public int UserRating { get; init; }
+        [MaxLength(1000)]
+        public string UserReview { get; init; }
+    }
+}