Styling enhancements + js enhancements + component and general bugfixes

• Added fix for unwanted line

• Changed speed and updated url of image on component page

• Refactored fade in animation to be able to have an attribute to control the delay

• Fixed glide on courses-overview page

• Added hero animation

• Added smoothscroll

• Added all js-hero classes

• Fixed header intern. server error

• Fixed trigger multiple hero's

• Added scope to icon component

• Split up upload variants