Added BlockSort Implementation

Author: yashleo

src/main/java/com/thealgorithms/sorts/BlockSort.java

@@ -69,7 +69,6 @@ private <T extends Comparable<? super T>> T[] mergeBlocks(T[][] blocks) {
                 result[index++] = element; // Add each element from the block to the result array
             }
         }
-
         return result;
     }
 }