Fix build errors: remove unused hooks and import

useGoogleDriveFolder and useYouTubePlaylists are superseded by the
build-time fetch approach. Remove them to clear TypeScript errors.
Also remove unused getEmbedUrl import from OurWork.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: creazyfrog

src/hooks/useGoogleDriveFolder.ts

@@ -1,6 +1,5 @@
 import { useState } from 'react'
 import VideoModal from '../components/ui/VideoModal'
-import { getEmbedUrl } from '../data/projects'
 import type { Project, ProjectCategory } from '../data/projects'
 import { PLAYLISTS } from '../data/playlists'
 import { useAllVideos } from '../hooks/useAllVideos'