feat: update IconDraggable to use darker green color

[motea927]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

The draggable icon was too light and hard to see. This PR updates the icon color to a deeper shade for better visibility.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly (for new feature).