Fix for home links not refreshing page. CSS fix
* Changed home links from '/boards' to '/'. '/' redirects to '/boards'
  so this forces it to reload the page when you click home or the logo
* Angular doesn't normally reload content if the url doesnt change when
  using ng-href so this is one of the possible ways to solve this.
  Another solution would be to add target="_self" to the link but this
  would cause a full page reload, not a reload within angular.
* Fix for collapse icons css. Added inline-block css property so
  category titles dont shift while the font awesome icons load.