Changelog:
- Change: The third accent is now retrieved out of the "Don't miss" news section.
- Change: Handle failed to load images better (visually) and make sure to recover when the internet connection is interrupted.
- Change: Transition better between when switching online and offline states.
- Fix: Check if data is outdated initially, right after a new tab gets open.
- Fix: A few bugs which were causing too much unnecessary API calls

- Change: Implement another (safer) approach to send reports to Google Analytics without resorting to remote script injection.
- Change: The CSP that allows remote-script injection is removed.
- Change: The add-on name and description are translated in Bulgarian language.