update footer endpoint in branding api to support inclusion of language selector

lms/static/sass/base/_base.scss

@@ -55,8 +55,8 @@ p {
 }
 
 span {
-  font: inherit;
   color: inherit;
+  font: inherit;
 }
 
 /* Fix for CodeMirror: prevent top-level span from affecting deeply-embedded span in CodeMirror */

lms/static/sass/shared/_footer-edx.scss

@@ -33,6 +33,10 @@ footer#footer-edx-v3 {
     font-family: $sans-serif;
   }
 
+  .copyright {
+    margin-top: 30px;
+  }
+
   .site-nav,
   .legal-notices {
     li {
@@ -68,7 +72,7 @@ footer#footer-edx-v3 {
   }
 
   .legal-notices {
-    margin: 20px 0 30px;
+    margin: 20px 0;
   }
 
   .openedx-link {
@@ -89,7 +93,7 @@ footer#footer-edx-v3 {
   .social-media-links,
   .mobile-app-links {
       @extend %ui-no-list;
-      
+
       .list-item {
           display: inline-block;
       }
@@ -107,6 +111,12 @@ footer#footer-edx-v3 {
     margin-bottom: 30px;
   }
 
+  .icon {
+    font-family: 'FontAwesome';
+    font-style: normal;
+    color: $edx-footer-link-color;
+  }
+
   a.sm-link {
     @include float(left);
     @include margin(0, 0, 10px, 10px);
@@ -129,11 +139,6 @@ footer#footer-edx-v3 {
       opacity: 0.7;
       border: none;
     }
-
-    .icon {
-      font-family: 'FontAwesome';
-      color: $edx-footer-link-color;
-    }
   }
 
   .app-link {
@@ -208,4 +213,13 @@ footer#footer-edx-v3 {
       margin-bottom: 50px;
     }
   }
+
+  .footer-language-selector {
+    margin: 20px 0;
+
+    label[for=footer-language-select] {
+      display: inline-block;
+      cursor: initial;
+    }
+  }
 }

lms/static/sass/shared/_footer.scss

@@ -37,6 +37,11 @@
       }
     }
 
+    .icon {
+      font-family: 'FontAwesome';
+      font-style: normal;
+    }
+
     // colophon
     .colophon {
       @include span-columns(8);
@@ -186,6 +191,13 @@
         }
       }
     }
+
+    .footer-language-selector {
+      label[for=footer-language-select] {
+        display: inline-block;
+        cursor: initial;
+      }
+    }
   }
 
   // edx theme overrides