Merge pull request #7721 from edx/clrux/UX-1953-dropdown-fix

Fixed caret position for LTR and RTL (SOL-693)

lms/static/sass/discussion/elements/_actions.scss

@@ -58,7 +58,7 @@
       &:after,
       &:before {
         bottom: 100%;
-        @include right(3px);
+        right: 6px;
         border: solid transparent;
         content: " ";
         height: 0;

lms/static/sass/multicourse/_dashboard.scss

@@ -298,7 +298,6 @@
     @include transition(all 0.15s linear 0s);
     @include clearfix();
     @extend %ui-depth2;
-    position: relative;
     margin: ($baseline/2);
 
     .details {
@@ -479,7 +478,7 @@
               &:after,
               &:before {
                 bottom: 100%;
-                @include right(3px);
+                right: 6px;
                 border: solid transparent;
                 content: " ";
                 height: 0;