[CodeFactor] Apply fixes

Author: code-factor

src/algorithm_exercises_csharp/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/FrequencyQueries.cs

@@ -124,7 +124,6 @@ static FrequencyQueries factory()
    */
   public static List<int> freqQuery(List<List<int>> queries)
   {
-
     FrequencyQueries fq = factory();
 
     foreach (List<int> query in queries)

src/algorithm_exercises_csharp_test/hackerrank/interview_preparation_kit/dictionaries_and_hashmaps/FrequencyQueries.Test.cs

@@ -5,7 +5,6 @@ namespace algorithm_exercises_csharp_test.hackerrank.interview_preparation_kit.d
 [TestClass]
 public class FrequencyQueriesTest
 {
-
   public class FrequencyQueriesTestCase
   {
     public string title { get; set; } = default!;
@@ -57,7 +56,6 @@ public void testFrequencyQueriesBigCases()
 
     foreach (FrequencyQueriesTestCase test in testCase6)
     {
-
       solutionFound = FrequencyQueries.freqQuery(test.input);
       CollectionAssert.AreEqual(test.expected, solutionFound, String.Format("%s(%s) answer must be: %s" +
               "FrequencyQueriesTest.freqQuery",