feat(footer): internationalize footer layout and remove directions section

- Remove #directions section and DirectionsBlock component from home page
- Translate Footer masthead brand titles to ANL and AI Agent Networking Lab
- Update Footer affiliated institution links to KNU, CSE, and College of IT Engineering
- Add advisor information (Prof. Seok-Joo Koh) and translate address to English
- Translate Footer quick navigation links and colophon/copyright text
- Update E2E test assertions for the updated footer layout and address

refer_landing_page/app/page.tsx

@@ -1,7 +1,6 @@
 import React from "react";
 import Link from "next/link";
 import HeroComposition from "./_components/HeroComposition";
-import { DirectionsBlock } from "./_components/DirectionsBlock";
 import { ProjectPageView } from "./_components/ProjectPageView";
 import { publications, patents } from "../content/publications";
 import { standardsBodies } from "../content/standards";
@@ -193,9 +192,6 @@ export default function HomePage() {
           </div>
         </div>
       </section>
-
-      {/* Directions Block */}
-      <DirectionsBlock />
     </div>
   );
 }