Add border to copyright

Author: ronellecaguioa

app/stylesheets/MainContainer.scss

@@ -9,10 +9,13 @@
   .main-routes {
     width: 100%;
     height: 100%;
+    padding-bottom: 20px;
   }
 
   .copyright-container {
-    @include centerWithFlex();
+    @include centerWithFlex(center);
     width: 100%;
+    padding: 10px;
+    border-top: thin solid $lightgray;
   }
 }

app/stylesheets/constants.scss

@@ -1,6 +1,7 @@
 $brandgold: #fce356;
 $sidebarblue: #24262f;
 $headergray: #e8e8e8;
+$lightgray: #c3c3c3;
 
 @mixin centerWithFlex($justify: center) {
   display: flex;