Fix failing tests

Author: satano

src/MigrationTools.Shadows/Services/TelemetryLoggerFake.cs

@@ -1,21 +1,15 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace MigrationTools.Services.Shadows
+namespace MigrationTools.Services.Shadows
 {
     public class TelemetryLoggerFake : ITelemetryLogger
     {
         public string SessionId { get { return new Guid().ToString(); } }
 
         public void TrackException(Exception ex, IDictionary<string, string> properties = null)
         {
-            throw new NotImplementedException();
         }
 
         public void TrackException(Exception ex, IEnumerable<KeyValuePair<string, string>> properties = null)
         {
-          
         }
     }
 }

src/MigrationTools.Shadows/Tools/MockFieldMappingTool.cs

@@ -13,10 +13,7 @@ public void AddFieldMap(string workItemTypeName, IFieldMap fieldToTagFieldMap)
             throw new NotImplementedException();
         }
 
-        public List<IFieldMap> GetFieldMappings(string witName)
-        {
-            throw new NotImplementedException();
-        }
+        public List<IFieldMap> GetFieldMappings(string witName) => [];
 
         public void ApplyFieldMappings(WorkItemData source, WorkItemData target)
         {