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/tests/e2e_test_suite.py

@@ -44,7 +44,9 @@ class TestANLHomepageE2E(unittest.TestCase):
 
         # 3. Location / Address section
         self.assertIn("address", html.lower())
-        self.assertIn("경북대학교 IT대학 5호관", html)
+        self.assertIn("Kyungpook National University", html)
+        self.assertIn("College of IT Engineering", html)
+        self.assertIn("Prof. Seok-Joo Koh", html)
         self.assertIn("sjkoh@knu.ac.kr", html)
 
     def test_02_members_page_content(self):