Create UserGreeting component

[Dustin-Reyes]

Build user greeting component for the top of the menu page.

Tasks:

• Create src/components/UserGreeting.jsx
• Add avatar placeholder (circle with icon or initials)
• Display "Hello, [Name]" text (configurable prop)
• Add subtitle: "What do you want to eat today!"
• Implement responsive sizing
• Style with existing theme colors
• Add proper spacing

Acceptance Criteria:

• Component displays avatar and greeting
• Name is configurable via props
• Responsive on mobile and desktop
• Uses theme typography and colors
• Clean, reusable component

Sprint: 2 - Core Components