chore: remove npm-run-all dependency

[tassoevan]

Replace all run-s (from npm-run-all) invocations with Yarn Berry's built-in run command chained with &&, then remove the npm-run-all devDependency from all 13 packages.

What changed

• 11 package.json files: replaced run-s .:script:a .:script:b → run .:script:a && run .:script:b
• 13 package.json files: removed "npm-run-all": "^4.1.5" from devDependencies (includes 2 packages that had the dep but never used it: emitter, icons)
• yarn.lock: 26 transitive packages removed

Why

• npm-run-all is unmaintained (last publish 2019) and unnecessary — Yarn Berry natively supports run <script> in shell commands
• fuselage-forms was already using this pattern (run .:build:clean && run .:build:esm && run .:build:cjs)
• Reduces dependency surface area

[changeset-bot]

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Latest commit: 26c3df7

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