Add Gallery Feature to fusering.hackclub.com/gallery

[pixelglide]

Summary

Implement a gallery feature on fusering.hackclub.com/gallery to showcase projects.

Requirements

• Fetch and render projects that have "Gallery Consent" set to true from Airtable.
• If it is not feasible to pull projects from Airtable, fall back to rendering each image from a folder of static images.
• Render gallery images as cards displayed in a responsive grid layout.

Notes

• Prefer dynamic rendering from Airtable with filtering if possible.
• Ensure the gallery is visually clear, accessible, and easy to browse.