LT-249: Fixing issue with multiple duplicated CSS imports

Packages/design/styles/common/global.styl

@@ -0,0 +1,21 @@
+@import "{design}/app.styl"
+
+html body
+  font-family: 'Roboto', 'OpenSans', 'HelveticaNeue-Light', 'Helvetica Neue Light', 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif
+
+html hr
+  border-top: 1px solid $uiBorderColor
+
+.center-table
+  display: table
+  margin-left: auto
+  margin-right: auto
+
+.caret-down
+  display: inline-block
+  width: 0
+  height: 0
+  margin-top: .5rem
+  border-top: 5px solid
+  border-right: 5px solid transparent
+  border-left: 5px solid transparent