Add Emoji Icons to Activity Types

[Eshaan-byte]

Enhance activity types with colorful emoji icons

Tasks

• Update src/constants/co2Factors.ts to include emoji for each activity
• Add emojis: 📧 (email), 📹 (video call), 🎬 (streaming), 💻 (coding), 🌐 (browsing)
• Display emojis in activity dropdown
• Show emojis in activity history list
• Update TypeScript types to include emoji property

Acceptance Criteria

• All activities have appropriate emojis
• Emojis display in forms and history
• Consistent emoji size across app
• Types are properly updated

[AMIT20-P]

hey @Eshaan-byte i would love to do this task, please assign this to me.

[Eshaan-byte]

Hey @AMIT20-P!

I reviewed PR #49 again - you actually implemented the emoji requirements correctly! 🎉

All the requested emojis are there:

• ✅ 📧 email
• ✅ 📹 video calls
• ✅ 🎬 streaming
• ✅ 💻 coding
• ✅ 🌐 browsing (for social media)
• ✅ ☁️ cloud storage (good choice!)
• ✅ 🎮 gaming (good choice!)

Minor issues to fix:

1. Please avoid removing existing comments in the code
2. Keep the original code formatting (don't change quote styles or spacing)
3. Add a newline at the end of co2Factors.ts file

Could you please reopen the PR or create a new one with these small fixes? The implementation itself is great! 👍

Thanks!