Make the home page into reusable and translatable blocks (#10071)

* Make navigation and UI strings i18n friendly

This commit

* Extracts most UI strings into i18n bundles so they can be translated
* Makes a proper Hugo menu out of the hardcoded menu that is shown on smaller screens
* Changes the language selector logic to navigate to the current page in the other language if possible (e.g. the translation). If not possible, it takes you to the home page for that language.

For testing, this commit also adds Norwegian as a new language. This is turned off.

* Make the home page into reusable and translatable blocks

This commit adds a set of block type shortcodes that is then used to build the home page.

* These shortcodes gets common image resources from a new headless bundle. These resources can be inherited or overridden by translations.
* The hardcoded case studies section on the home page is replaced with a query and a loop.
* The hardcoded feature list on the home page is replaed qith a query and a loop.

assets/sass/_base.sass

@@ -1126,7 +1126,6 @@ $feature-box-div-margin-bottom: 40px
 #video
 	width: 100%
 	position: relative
-	background-image: url(/images/kub_video_banner_homepage.jpg)
 	background-position: center center
 	background-size: cover
 
@@ -1721,35 +1720,25 @@ $feature-box-div-margin-bottom: 40px
 		text-align: center
 		margin-bottom: 30px
 
+		img
+			padding-bottom: 1rem;
+
 		div
 			position: relative
 			display: inline-block
 			vertical-align: top
 			width: 100%
 			min-height: 230px
-			padding: 125px 10px 15px
-			margin-bottom: 30px
+			margin-bottom: 60px
+			padding-right: 1rem;
 			background-position: top center
-			background-repeat: no-repeat
-
-		div:nth-child(1)
-			background-image: url(/images/community_logos/pearson_logo.png)
-
-		div:nth-child(2)
-			background-image: url(/images/community_logos/box_logo.png)
-
-		div:nth-child(3)
-			background-image: url(/images/community_logos/ebay_logo.png)
-
-		div:nth-child(4)
-			background-image: url(/images/community_logos/wikimedia_foundation_logo.png)
-
+	
 		p
 			font-size: 20px
 
 		a
 			position: absolute
-			bottom: 0
+			bottom: -30px;
 			left: 50%
 			transform: translateX(-50%)
 			color: $blue

assets/sass/_desktop.sass

@@ -138,7 +138,6 @@ $video-section-height: 550px
 	#video
 		height: $video-section-height
 		position: relative
-		background-image: url(../images/kub_video_banner_homepage.jpg)
 		background-position: center center
 		background-size: cover