Emoji Food Templates
- Food templates now include emoji icons (⚡ Energy Gel, 🍫 Energy Bar, 🍌 Banana, etc.)
- Small data field layouts show just the emoji for maximum space efficiency
- Larger layouts show emoji + full name (e.g. "⚡ Energy Gel")
- Water logging shows 💧 emoji
- Custom food items default to text-only (emoji optional)