Summary: Stepik removes course listings

Why It Matters: This change makes the page shorter. It removes specific course details from view.

What Changed:

• Removed specific course listings from the "В тренде" (In Trend) section.
• Removed specific course listings from the "Распродажа курсов по ЕГЭ" (EGE Course Sale) section.
• Removed specific course listings from the "AI в программировании" (AI in Programming) section.
• Updated the number of solutions from 1,530,746,713 to 1,531,272,315.
• Changed the number of Java courses from 29 to 28 in the "Часто ищут" (Frequently Searched) section.
• Updated the number of subscribers for Nikita Filonov from 527 to 531.
• Updated the number of subscribers for Anastasia Kuznetsova from 2.5K to 2.6K.
• Updated the number of subscribers for Ivan Starodubtsev from 20.2K to 20.3K.