Integrates Bandcamp and SoundCloud players for the ParVagues live set
into the CosmicFest page.

Key changes:
- Added Bandcamp embed for track-by-track listening.
- Added SoundCloud embed for the continuous mix (downloads enabled).
- Updated "prends la prochaine vague" button to a mailto link.
- Reduced padding and font sizes for lineup tiles for a more compact look.
- Ensured lineup artist names and emojis stay on a single line with responsive font sizing.
- Improved hero section text contrast.
- Enhanced V0 gallery:
    - Improved visibility of alt text for photos.
    - Made entire video items clickable links.
    - Standardized gallery item styling.
- General mobile-first and accessibility improvements.

feat: Add YouTube to ParVagues footer and fix header booking link

- Added YouTube icon and link to the social media section in the ParVagues footer.
- Updated the header booking link to the correct mailto address.

feat: Initial landing page for cosmicfest subsite

- Modifies the focus selectors in `cosmicfest.module.css` to use `:global()` to comply with CSS Modules restrictions.
- This resolves the build failure.

- Creates basic structure for /cosmicfest.
- Implements main landing page with sections for hero, lineup, v0 (previous edition) content, countdown, CTA, and festival off teaser.
- Includes placeholders for images and video content.
- Adds styling for a light theme, reflecting the 'surfers cross techno' vibe with lowercase aesthetic.
- Countdown component implemented.
- Basic responsive design considerations included.

ParVagues overhaul