Add project sorting by time/level

[prakshithamalla-art]

Task

Add dropdown to sort projects

Options

• Sort by Level (Beginner first)
• Sort by Time (Low to High)
• Sort by Title (A-Z)

[prakshithamalla-art]

@komalharshita Please assign these issues to me under GSSoC'26. I can work on them.

[rahul616sama]

Hi! I'd love to work on this — contributing under GSSoC'26. Can I be assigned? 🙏