This PR migrates the whole monorepo to use Tailwind v4:
- Removed `@tailwindcss/container-queries` plugin since it's included by
default in v4,
- Bump all instances of Tailwind to v4. Made minimal changes to the
shared config to remove non-supported features (`alpha` mentions),
- Migrate all apps to be compatible with v4 configs,
- Fix the `typography.css` import in 3 apps,
- Add missing rules which were included by default in v3,
- Run `pnpm dlx @tailwindcss/upgrade` on all apps, which renames a lot
of classes
- Rename all misnamed classes according to
https://tailwindcss.com/docs/upgrade-guide#renamed-utilities in all
apps.
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Co-authored-by: Jordi Enric <jordi.err@gmail.com>
## What kind of change does this PR introduce?
- Bug fix that resolves DEPR-396
- Additional improvements to blog post image handling
## What is the current behavior?
Blog post Open Graph metadata often prefers `imgThumb` over `imgSocial`,
so social previews on X, iMessage, and similar surfaces can render the
on-site thumbnail instead of the intended social image.
The image selection and path-normalization rules are also duplicated
across blog surfaces, which makes the precedence rules easy to drift.
## What is the new behavior?
- Centralizes blog image handling in `apps/www/lib/blog-images.ts`
- Uses `imgSocial` first, then `imgThumb`, for blog OG/Twitter metadata
- Uses `imgThumb` first, then `imgSocial`, then the placeholder, for
blog thumbnails and post hero images
- Normalizes relative blog image paths into absolute URLs for metadata
- Adds warning-only validation during content reads/builds for partial
or malformed `imgSocial` / `imgThumb` config
- Updates a few recent blog posts so `imgThumb` is a thumbnail-only
asset instead of duplicating the social image
## Additional context
- Replaces #42319 with the additional above fixes
- Added unit coverage for the shared image helper
---------
Co-authored-by: Alan Daniel <stylesshjs@gmail.com>
