Release v0.4.0

What's Changed

• Upgrade to the latest and mightiest vite!
• Branding in the footer is now clickable. The links can be configured via config.json.
• Add sentry support by @Half-Shot in #53.
• Show a spinner within the button when waiting for chatterbox to complete its magic.
• Add cypress tests by @Half-Shot in #50.
• Fix for a bug where the avatars for other users were missing.
• Upgrade to latest hydrogen sdk, fixes #54

Full Changelog: v0.3.2...v0.4.0