refactor(i18n): update personal info and improve language switcher

- Update personal information in i18n files to reflect new user details
- Remove hardcoded personal info from GlassHeader and use i18n instead
- Simplify navigation items in GlassHeader by removing unused sections
- Enhance LanguageSwitcher UI with better display and chevron icon

src/i18n/ui.ts

@@ -19,9 +19,9 @@ export const ui = {
     'page.home.title': 'Home',
 
     // Personal Info
-    'personal.name': 'Rishikesh S',
-    'personal.title': 'Software Engineer 👨‍💻',
-    'personal.location': 'Coimbatore, India',
+    'personal.name': 'Joy Zhao',
+    'personal.title': 'Full Stack Engineer 👨‍💻',
+    'personal.location': 'China',
     'personal.email': 'rkesh2003@gmail.com',
 
     // Hero Section
@@ -162,9 +162,9 @@ export const ui = {
     'page.home.title': '首页',
 
     // Personal Info
-    'personal.name': 'Rishikesh S',
-    'personal.title': '软件工程师 👨‍💻',
-    'personal.location': '哥印拜陀，印度',
+    'personal.name': 'Joy Zhao',
+    'personal.title': '全栈工程师  👨‍💻',
+    'personal.location': '中国',
     'personal.email': 'rkesh2003@gmail.com',
 
     // Hero Section