fix: resolve content overflow issues and update dependencies
- Add min-w-0 utility classes to prose containers to fix overflow in grid/flex layouts
- Update .prose CSS to use max-width: 100% and min-width: 0 instead of max-w-none
- Add overflow constraints to prose children (img, pre, code, blockquote, table)
- Remove unused afterUpdate import from PostContent.svelte
- Simplify layout logic by removing lg:mx-[10vw] constraints
- Update @sveltejs/adapter-vercel to 5.10.3
- Add @sveltejs/adapter-auto 6.1.1
- Remove unused font preload from app.html
- Remove unused OG image generation code from dynamicImports.ts
This ensures blog post content properly respects the 1000px container width
while maintaining responsive behavior and proper overflow handling for
code blocks and other wide elements.