chore/bump-version-3.4.0

[ScharfViktor]

part of opencloud-eu/opencloud#1432

[Copilot]

Pull Request Overview

This PR bumps the version from 3.3.0 to 3.4.0 across all packages in the monorepo as part of a coordinated release.

• Updates version field in root package.json and all package.json files
• Maintains consistent versioning across all packages in the workspace
• Supports the release process outlined in the referenced GitHub issue

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
package.json	Updates root package version to 3.4.0
packages/web-test-helpers/package.json	Updates web-test-helpers package version to 3.4.0
packages/web-pkg/package.json	Updates web-pkg package version to 3.4.0
packages/web-client/package.json	Updates web-client package version to 3.4.0
packages/tsconfig/package.json	Updates tsconfig package version to 3.4.0
packages/prettier-config/package.json	Updates prettier-config package version to 3.4.0
packages/extension-sdk/package.json	Updates extension-sdk package version to 3.4.0
packages/eslint-config/package.json	Updates eslint-config package version to 3.4.0
packages/design-system/package.json	Updates design-system package version to 3.4.0

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[kulmann]

We're not in a clean state with the tailwind migration and didn't have any bugfixes or features which need to go into the rolling release. Web is skipping this release, i.e. please do the rolling release of opencloud without a web bump. Thank you!