v0.1.8 — Online status fix, reaction emojis

Fixes

• "Online in 56379 years" fixed — profile last-seen timestamps now display correctly (e.g. "Online 5 minutes ago")
• Reactions now show actual emoji — previously any reaction other than 🔥 showed a broken character. All types now render: 🔥 ❤️ 😂 😮 👍 😢