chore(web): bump postcss to 8.5.10

[brendan-kellam]

Fixes SOU-995

Summary

• Bumped postcss direct devDependency in packages/web from ^8 to ^8.5.10.
• Ran yarn dedupe postcss to consolidate transitive copies (vite, tailwindcss) onto the same resolution.

🤖 Generated with Claude Code

[coderabbitai]

Walkthrough

The pull request updates the PostCSS development dependency from version ^8 to ^8.5.10 in the web package and documents this change in the changelog. This pins a more specific version constraint for PostCSS.

Changes

Cohort / File(s)	Summary
PostCSS Dependency Update CHANGELOG.md, packages/web/package.json	Updated PostCSS devDependency to ^8.5.10 and documented the fix in the unreleased changelog section.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• msukkari

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and accurately summarizes the main change: bumping the postcss dependency to version 8.5.10 in the web package.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch brendan/bump-postcss-sou-995

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[github-actions]

License Audit

⚠️ Status: PASS

Metric	Count
Total packages	2063
Resolved (non-standard)	11
Unresolved	0
Strong copyleft	0
Weak copyleft	39

Weak Copyleft Packages (informational)

Package	Version	License
@img/sharp-libvips-darwin-arm64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-darwin-arm64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-darwin-x64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-darwin-x64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm	1.0.5	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-ppc64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-riscv64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-s390x	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-s390x	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-x64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-linux-x64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-arm64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-arm64	1.2.4	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-x64	1.0.4	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-x64	1.2.4	LGPL-3.0-or-later
@img/sharp-wasm32	0.33.5	Apache-2.0 AND LGPL-3.0-or-later AND MIT
@img/sharp-wasm32	0.34.5	Apache-2.0 AND LGPL-3.0-or-later AND MIT
@img/sharp-win32-arm64	0.34.5	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-ia32	0.33.5	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-ia32	0.34.5	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-x64	0.33.5	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-x64	0.34.5	Apache-2.0 AND LGPL-3.0-or-later
axe-core	4.10.3	MPL-2.0
dompurify	3.4.0	(MPL-2.0 OR Apache-2.0)
lightningcss	1.32.0	MPL-2.0
lightningcss-android-arm64	1.32.0	MPL-2.0
lightningcss-darwin-arm64	1.32.0	MPL-2.0
lightningcss-darwin-x64	1.32.0	MPL-2.0
lightningcss-freebsd-x64	1.32.0	MPL-2.0
lightningcss-linux-arm-gnueabihf	1.32.0	MPL-2.0
lightningcss-linux-arm64-gnu	1.32.0	MPL-2.0
lightningcss-linux-arm64-musl	1.32.0	MPL-2.0
lightningcss-linux-x64-gnu	1.32.0	MPL-2.0
lightningcss-linux-x64-musl	1.32.0	MPL-2.0
lightningcss-win32-arm64-msvc	1.32.0	MPL-2.0
lightningcss-win32-x64-msvc	1.32.0	MPL-2.0

Resolved Packages (11)

Package	Version	Original	Resolved	Source
@react-grab/cli	0.1.23	UNKNOWN	MIT	npm tarball LICENSE file
@react-grab/cli	0.1.29	UNKNOWN	MIT	npm tarball LICENSE file
@react-grab/mcp	0.1.29	UNKNOWN	MIT	npm tarball LICENSE file
@types/serve-static	1.15.7	UNKNOWN	MIT	npm registry (registry.npmjs.org)
codemirror-lang-elixir	4.0.0	UNKNOWN	Apache-2.0	GitHub repo LICENSE file (github.com/livebook-dev/codemirror-lang-elixir)
element-source	0.0.3	UNKNOWN	MIT	npm tarball LICENSE file
lezer-elixir	1.1.2	UNKNOWN	Apache-2.0	GitHub repo LICENSE file (github.com/livebook-dev/lezer-elixir)
map-stream	0.1.0	UNKNOWN	MIT	GitHub repo LICENCE file (github.com/dominictarr/map-stream)
memorystream	0.3.1	UNKNOWN	MIT	npm registry licenses array (github.com/JSBizon/node-memorystream/raw/master/LICENSE)
valid-url	1.0.9	UNKNOWN	MIT	GitHub repo LICENSE file (github.com/ogt/valid-url)
posthog-js	1.369.0	SEE LICENSE IN LICENSE	Apache-2.0	GitHub repo LICENSE file (github.com/PostHog/posthog-js)