Fix element selectors for arrow movement

Fixed the selectors that select the arrow so the moving navigation arrow is now fixed.
Fixed indentation
Removed double initiation of Foundation

Fixes #5
Fix formatting issue
Update scripts.js
Assign new global body font family
Remove specificity of menu icon selector
Change tabbar-menu-icon-color
Update index.html
Update style.css
Update _global.scss
Update _home.scss
Update scripts.js
Update _global.scss
Update _global.scss
Fix formatting issue
Fixed nav arrow top offset

The arrow now moves along the top of the page instead of hovering in the middle of nowhere.
Fix formatting issue
Update scripts.js
Fix for #6

Fixes #6