fix: Accept class parameter for destination instead of class name

test/np/com/krrish/MapperTest.java

@@ -9,7 +9,7 @@ class MapperTest {
     @Test
     void testEmptyFieldsMap() {
         Source source = new Source();
-        Object destination = Mapper.map(source, "np.com.krrish.Destination");
+        Object destination = Mapper.map(source, Destination.class);
         assertEquals(Destination.class, destination.getClass());
     }
 
@@ -19,7 +19,7 @@ class MapperTest {
         source.setFirst("first");
         source.setSecond("second");
 
-        Destination destination = (Destination) Mapper.map(source, "np.com.krrish.Destination");
+        Destination destination = (Destination) Mapper.map(source, Destination.class);
         assertEquals("first", destination.getFirst());
     }
 }