1. Fix toggling of power when power button replaces player icon.
2. Show ESP32 and pCP configuration button in 'Player settings' dialog when called from 'Information' and 'Manage players' dialogs.
3. Rename 'Alt' keyboard shortcuts to 'Option' for macOS.
4. Fix native UI changes callback.
5. Split 'Help' page HTML into header, text, and footer - to make translation easier.
6. Fix untranslated tooltips in iframe dialogs (e.g. 'Server settings')
7. Work-around CSS pointer detection failing by setting a CSS property via javascript.
8. Double click on audio items (e.g. tracks and streams) in browse view to play.