happa release v1.49.0

Changes

• Display for pre-installed apps in clusters was improved by @gusevda in https://github.com/giantswarm/happa/pull/3657
• Allow installing an app multiple times if clusterSingleton restriction is not set by @kuosandys in https://github.com/giantswarm/happa/pull/3658

Preview

Full Changelog: https://github.com/giantswarm/happa/compare/v1.48.0...v1.49.0