happa release v1.35.9

Improve app uninstallation confirmation info by @kuosandys in https://github.com/giantswarm/happa/pull/3141
Ensure SVG app icons are appropriate for a dark background by @marians in https://github.com/giantswarm/happa/pull/3157
Fix default g8sControlPlane replicas for creating HA masters and remove setting AWSControlPlane AZ’s by @kuosandys in https://github.com/giantswarm/happa/pull/3156

Full Changelog: https://github.com/giantswarm/happa/compare/v1.35.8...v1.35.9