WAC-35 Further CSS and formatting improvements (#5)

* WAC-35 fixed headline style

* WAC-35 overwrite default CKAN style for footer (removed background and padding)

* WAC-35 hightlight-box background color updated

* WAC-35 removed '--' from NavbarBrandingContainer when hovered

* WAC-35 Fix The border radius on the left hand side of the promoted search bar does not match the  border radius of the search bar button

* WAC-35 Adjusted white space under the “view and filter all data” link.

* WAC-35 Adjusted `top: 8px` for the the #NavbarBrandingContainer

* WAC-35 Fixed The search bar in the footer that has some strange border-radius

* WAC-35 Fixed The search bars

* WAC-35 Fix : only top bar label gets hidden on smaller screens

* WAC-35 Fix : Footer search magnifying glass is now marine blue

* WAC-35 Fix : Padding fix for bottom lens btn

* WAC-35 Fix : buttons styling

* WAC-35 Fix : buttons styling

* WAC-35 Fix : active link style

* WAC-35 Fix : footer search padding

* WAC-35 Fix : add + to find data page

* WAC-35 Fix : add + to find data page

* WAC-35 Fix : top search on mobile size

* WAC-35 Fix : Attempt to fix typographics

* WAC-35 Fix : package_item for mobile

* WAC-35 Fix : package_item for mobile

* WAC-35 Fix : removed bottom line in last dataset in dataset page

* WAC-35 Fix : removed tag padding bottom

* WAC-35 Fix : added dataset content modified padding bottom

* WAC-35 Fix : fix dataset search button border radius

* WAC-35 Fix : fix footer ul and description responsiveness

* WAC-35 Fix : fix footer links color

ckanext/who_afro/assets/css/promoted-plus.css

@@ -37,6 +37,14 @@
     height: 492px;
 }
 
+.plus-top-right {
+    position: absolute;
+    top: 35px;
+    left: calc(95%);
+    width: 120px;
+    height: 120px;
+}
+
 .plus-bottom-right {
     position: absolute;
     top: 211px;