Parameterize references to generic types. (#5078)

* chore: remove unused imports

* fix: parameterize references to generic types


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Co-authored-by: vil02 <65706193+vil02@users.noreply.github.com>

src/main/java/com/thealgorithms/datastructures/dynamicarray/DynamicArray.java

@@ -145,7 +145,7 @@ public class DynamicArray<E> implements Iterable<E> {
      * @return Iterator a Dynamic Array Iterator
      */
     @Override
-    public Iterator iterator() {
+    public Iterator<E> iterator() {
         return new DynamicArrayIterator();
     }