Broken sun emoji in 'Good evening' greeting

[jaylfc]

Greeting component renders a 📹/tofu-box glyph before 'Good evening' instead of a sun. Likely a variation-selector Unicode char that isn't in iOS's installed emoji font, OR the component is using a character that doesn't exist.

Fix

Swap the emoji for a lucide icon so it's a real SVG not a font-dependent character. Icons available: `Sun`, `SunDim`, `Sunrise`, `Sunset`, `Moon`, `CloudSun`.

Grep `desktop/src` for the greeting component (`Good morning`/`Good evening`/`greeting`) and replace the emoji with the lucide icon matching the time-of-day branch.

Acceptance

• No tofu glyph on iOS
• Time-of-day branches (morning / afternoon / evening / night) each show the right icon