Docs: Button and ButtonLink have isSymmetrical prop instead of isSqua…

…re #DS-1484

docs/migrations/web-react/MIGRATION-v3.md

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+# Migration Guide
+
+Introducing version 3 of the _spirit-web-react_ package.
+
+> Please follow these steps to safely upgrade to Spirit Design System v3 components.
+
+> ℹ️ Don't forget to check the [migration guide of the _spirit-web_ package][migration-guide-web] for general changes in
+> available feature flags, CSS, and other changes that might affect your project.
+
+## Overview
+
+- [Component Changes](#component-changes)
+  - [Button and ButtonLink: `isSquare` prop](#button-and-buttonlink-issquare-prop-renamed-to-issymmetrical)
+
+## Component Changes
+
+### Button and ButtonLink: `isSquare` prop renamed to `isSymmetrical`
+
+Button `isSquare` prop was renamed to `isSymmetrical`.
+
+#### Migration Guide
+
+🪄 Use codemods to automatically update your codebase:
+
+```sh
+npx @lmc-eu/spirit-codemods -p <path> -t v2/web-react/button-prop-name
+npx @lmc-eu/spirit-codemods -p <path> -t v2/web-react/buttonLink-prop-name
+```
+
+👉 See [Codemods documentation][readme-codemods] for more details.
+
+<details>
+  <summary>🔧 Manual Migration Steps</summary>
+
+Manually replace the props in your project.
+
+- `<Button isSquare … />` → `<Button isSymmetrical … />`
+- `<ButtonLink isSquare … />` → `<ButtonLink isSymmetrical … />`
+</details>
+
+---
+
+Please refer back to these instructions or reach out to our team if you encounter any issues during migration.
+
+[migration-guide-web]: https://github.com/lmc-eu/spirit-design-system/blob/main/docs/migrations/web/MIGRATION-v3.md
+[readme-codemods]: https://github.com/lmc-eu/spirit-design-system/blob/main/packages/codemods/README.md

docs/migrations/web-twig/MIGRATION-v4.md

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+# Migration Guide
+
+Introducing version 4 of the _spirit-web-twig_ package.
+
+> Please follow these steps to safely upgrade to Spirit Design System v4 components.
+
+> ℹ️ Don't forget to check the [migration guide of the _spirit-web_ package][migration-guide-web] for general changes in
+> available feature flags, CSS, JavaScript plugins, and other changes that might affect your project.
+
+## Overview
+
+- [Component Changes](#component-changes)
+  - [Button and ButtonLink: `isSquare` prop](#button-and-buttonlink-issquare-prop-renamed-to-issymmetrical)
+
+## Component Changes
+
+### Button and ButtonLink: `isSquare` prop renamed to `isSymmetrical`
+
+Button `isSquare` prop was renamed to `isSymmetrical`.
+
+#### Migration Guide
+
+- `<Button isSquare … />` → `<Button isSymmetrical … />`
+- `<ButtonLink isSquare … />` → `<ButtonLink isSymmetrical … />`
+
+---
+
+Please refer back to this guide or reach out to our team if you encounter any issues during migration.
+
+[migration-guide-web]: https://github.com/lmc-eu/spirit-design-system/blob/main/docs/migrations/web/MIGRATION-v3.md

docs/migrations/web/MIGRATION-v3.md

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+# Migration Guide
+
+Introducing version 3 of the _spirit-web_ package.
+
+> Please follow these steps to safely upgrade to Spirit Design System v3 components.
+
+## Overview
+
+- [Component Changes](#component-changes)
+  - [Button and ButtonLink: renamed modifier `square`](#button-and-buttonlink-square-modifier-renamed-to-symmetrical)
+
+## Component Changes
+
+### Button and ButtonLink: `square` modifier renamed to `symmetrical`
+
+Button `isSquare` prop was renamed to `isSymmetrical`.
+
+#### Migration Guide
+
+Instead of using `.Button--square` or `.ButtonLink--square`, use a `.Button--symmetrical` or
+`.ButtonLink--symmetrical`.
+
+- `.Button--square` → `.Button--symmetrical`
+- `.ButtonLink--square` → `.ButtonLink--symmetrical`
+
+---