🔧 chore: bump Yarn and dependency versions

[gfazioli]

• Update Yarn to 4.11.0 and adjust .yarnrc
• Bump Mantine packages to 8.3.7
• Update type definitions for node, react, react-dom
• Increment esbuild, eslint, rollup, simple-git, typescript-eslint to latest patches
• Update shiki and other dev dependencies to newer releases

[Copilot]

Pull Request Overview

This PR performs a routine maintenance update by bumping Yarn and several dependency versions to their latest patch/minor releases.

Key changes:

• Yarn upgraded from 4.10.3 to 4.11.0
• Mantine UI library packages updated from 8.3.6 to 8.3.7
• Multiple dev dependencies updated to latest patches (esbuild, eslint, rollup, typescript-eslint, simple-git, shiki, and TypeScript type definitions)

Reviewed Changes

Copilot reviewed 3 out of 5 changed files in this pull request and generated no comments.

File	Description
package.json	Updated packageManager to Yarn 4.11.0; bumped dev dependency versions for build tools, linters, and type definitions
docs/package.json	Updated Mantine packages to 8.3.7, shiki to 3.15.0, and type definitions to latest versions
.yarnrc.yml	Updated yarnPath to reference new Yarn 4.11.0 release
yarn.lock	Lock file automatically updated with new dependency versions and their transitive dependencies

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