Summary: SQLPad adds Data Interview section

Why It Matters: This change adds new content about data interviews. It also updates the leaderboard scores and changes one of the example SQL questions.

What Changed:

• The score for "Wang 🥇Gold" on the leaderboard changed from 281 to 297.
• The name "Harsh" at position 7 on the leaderboard changed to "Bella".
• The name "RAHUL" at position 10 on the leaderboard changed to "Saurabh".
• The example SQL question, tables, and solution code were completely replaced.
• A new section called "Data Interview" was added at the end of the content.
• This new section explains what a data interview might involve at a FAANG company.
• It also defines what FAANG stands for.