new features:
- display version in options page
- added link to open options page in separate tab
- added option "Don't show again on update." for options page
- added option to highlight page action icon
- added option to control browser action icon on notifications
fixes:
- CSP did not work properly for worker-src
- detection if the options page was displayed in a separate tab did not work reliably
- popup text not readable in some dark themes
- display conditions for notification settings
known issues:
- if a data URL is blocked the page action button does not appear