New features:
- Expose Scene controls to sources
- Pass on JS function arguments to BrowserClient
- Add Browser Source Refresh Hotkey
- Render JavaScript dialogs using Qt
- Improve performance of CEF 4638 browser sources
- Set window title for web popups using X11
- Add TypeScript definitions information
Bug fixes/cleanup:
- Don't call WasHidden on browser panels
- Use mutex when accessing BrowserSource::cefBrowser
- Correct JSDoc definitions
- Remove old CEF ifdefs