feat(ko): add the Korean online edition (#2006)

* feat(ko): add the complete Korean online edition

* Use UTF-8 for Python CI output on Windows

* Remove print-book promotion from the Korean site

* fix(ko): preserve emphasis before Korean particles

ko/codes/java/utils/ListNode.java

@@ -0,0 +1,28 @@
+/**
+ * File: ListNode.java
+ * Created Time: 2022-11-25
+ * Author: krahets ([email protected])
+ */
+
+package utils;
+
+/* 연결 리스트 노드 */
+public class ListNode {
+    public int val;
+    public ListNode next;
+
+    public ListNode(int x) {
+        val = x;
+    }
+
+    /* 리스트를 연결 리스트로 역직렬화 */
+    public static ListNode arrToLinkedList(int[] arr) {
+        ListNode dum = new ListNode(0);
+        ListNode head = dum;
+        for (int val : arr) {
+            head.next = new ListNode(val);
+            head = head.next;
+        }
+        return dum.next;
+    }
+}