Added SimilarityMethod to datapoint; Added euclidian distance, manhattan distance, pearson correlation; improved CosineSimilarity result using a remap

src/Shared/Models/JSONModels.cs

@@ -14,5 +14,6 @@ public class JSONDatapoint
     public required string Name { get; set; }
     public required string Text { get; set; }
     public required string Probmethod_embedding { get; set; }
+    public required string SimilarityMethod { get; set; }
     public required string[] Model { get; set; }
 }