Function TopHeader

Header component displayed at the top of the application

Features:

• Fixed positioning at top of viewport
• Responsive layout with max-width container
• Logo and application title
• Theme toggle integration
• Dark mode support

Layout:

• Horizontal layout with space-between alignment
• Left section: Logo and title
• Right section: Theme toggle
• Responsive padding and spacing

Visual Elements:

• Border bottom separator
• Background with theme colors
• Consistent spacing and alignment