Update node packages and GitHub Actions to newest stable versions

[b0x1]

This PR updates all project dependencies in package.json to their latest stable versions and increments GitHub Action versions in workflow files to their newest stable major releases.

Specifically:

• Node packages like typescript, eslint, vite, and others were updated to their latest stable versions (e.g., typescript@6.0.3, eslint@10.2.1).
• GitHub Actions in .github/workflows/deploy.yml were updated: pnpm/action-setup@v6, actions/cache@v5, and actions/upload-pages-artifact@v5.
• google-labs-code/jules-action was updated to the major version tag @v1 in performance-improver.yml and weekly-cleanup.yml.

Verification:

• Ran pnpm run check which includes type-checking, linting, and unit tests. All passed.
• Performed visual verification using Playwright to ensure the application still loads correctly.
• Synchronized pnpm-lock.yaml.

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PR created automatically by Jules for task 17570747815632686987 started by @b0x1

[google-labs-jules]

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