Improve Error Handling and Connection Management in profile.js

[smog-root]

Enhance the error handling, connection management, and query robustness in profile.js for improved reliability and maintainability.

Kindly add gssoc-ext with level and hacktoberfest-accepted labels! @Harshdev098!

1. Error Handling in display Function:

• Check if result is empty before accessing result[0] properties to avoid potential undefined errors.
• Solution: Add a check for an empty result and return a 404 Not Found response if no user data is found.

2. Error Handling in updateProfile:

• Wrap db.query in a promise to fully support asynchronous execution using await, improving compatibility with future refactoring.

3. Token Logging:

• Remove or mask sensitive information from any logging involving tokens, especially for production environments.

4. Optimize SQL Query Syntax:

• Consider switching from INNER JOIN to LEFT JOIN to include users without entries in info_table, if applicable.

5. Connection Release in display:

• Use a try...finally block to ensure connection.release() is called, even if an error occurs, preventing potential connection leaks.