Summary: Added user account details and new features.

Why It Matters: The website now shows more user-specific information.

What Changed:

• Added user name and certification status.
• Added user stats: articles, comments, follows, fans.
• Added user money and credit balance.
• Added new menu items under user account:
  • Private message list
  • Wealth management
  • Promotion center
  • Task center
  • Become a member
  • Certification service
  • My orders
  • My settings
  • Blacklist
  • Admin backend access
• Updated "Latest Courses" section with new course entries and changed date format.
• Updated view counts for some "Featured Courses."
• Added "Loading..." and "No more" messages to course lists.
• Added "Sign-in reward" pop-up.
• Added "My coupons" section.
• Added "Shopping cart" section.
• Added "New private message" notification.
• Moved and expanded user profile details in the footer.
• Updated the disclaimer text in the footer.