add a bool to track if main tab should be updated observe changes to explore prefs
add a bool to track if main tab should be updated
observe changes to explore prefs

montehurd/apps-ios-wikipedia,wikimedia/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,julienbodet/wikipedia-ios,julienbodet/wikipedia-ios,wikimedia/apps-ios-wikipedia,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,montehurd/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,julienbodet/wikipedia-ios,josve05a/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,julienbodet/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,montehurd/apps-ios-wikipedia,josve05a/wikipedia-ios,wikimedia/apps-ios-wikipedia,josve05a/wikipedia-ios,julienbodet/wikipedia-ios,josve05a/wikipedia-ios,montehurd/apps-ios-wikipedia,wikimedia/wikipedia-ios,josve05a/wikipedia-ios,wikimedia/wikipedia-ios,wikimedia/apps-ios-wikipedia,wikimedia/apps-ios-wikipedia,julienbodet/wikipedia-ios,montehurd/apps-ios-wikipedia