Stop highlighting horizontal borders

I tried to highlight the bottom border too, but I couldn't do it easily.
Raise the avatar box so that its placed over the borders
correctly mark upper-right nav elements as active
center notification count on bell symbol
highlight the symbols black instead of coloring the background
move frontpage article to separate template
Only use the content block in the public home template
remove nonexistant block and commented-out javascript
add some space before the footer
add the article with image and two boxes to the authenticated home
placed recent messages on hero_home