Update Convert Java files to Kotlin anchor id (#5184)

Co-authored-by: Konstantin Chernenko <kb.chernenko@gmail.com>

Author: ngocnhan-tran1996

static/js/ktl-component/teach/index.jsx

@@ -368,7 +368,7 @@ const Teach = (props) => {
                               </li>
                               <li className="teach-list__item">
                                   <a
-                                      href="/docs/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k"
+                                      href="/docs/mixing-java-kotlin-intellij.html#convert-java-files-to-kotlin"
                                       target="_blank"
                                       className={textCn('rs-link', {external: true})}
                                   >

static/js/ktl-component/why-teach/index.jsx

@@ -173,7 +173,7 @@ export const WhyTeach = ({path}) => {
                   <ul className="ktl-text-2">
                     <li className="ktl-offset-bottom-s">
                       <a
-                        href="https://kotlinlang.org/docs/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k"
+                        href="https://kotlinlang.org/docs/mixing-java-kotlin-intellij.html#convert-java-files-to-kotlin"
                         target="_blank" className="ktl-text-2 ktl-link">
                         <span className="rs-link">Java-to-Kotlin converter</span>
                         <span>&nbsp;↗</span>

test/e2e/teach/why.spec.ts

@@ -163,7 +163,7 @@ test.describe('Why Teach Kotlin page appearance and functionality', async () =>
         await expect(description).toBeVisible();
         await expect(description).toContainText('Kotlin can also be compiled into');
 
-        const link1 = interoperableSectionInfo.locator('a[href="https://kotlinlang.org/docs/mixing-java-kotlin-intellij.html#converting-an-existing-java-file-to-kotlin-with-j2k"]');
+        const link1 = interoperableSectionInfo.locator('a[href="https://kotlinlang.org/docs/mixing-java-kotlin-intellij.html#convert-java-files-to-kotlin"]');
         await expect(link1).toBeVisible();
         expect(await link1.textContent()).toBe('Java-to-Kotlin converter ↗');