fix active tab error
Merge branch 'master' of https://github.com/gdi2290/RedditInsight
Merge branch 'master' of https://github.com/gdi2290/RedditInsight
Merge branch 'master' of https://github.com/gdi2290/RedditInsight
add fixed navbar
Merge branch 'master' of https://github.com/gdi2290/RedditInsight