Sass fixes for rtl.

TNL-813

openassessment/xblock/static/sass/oa/utilities/_developer.scss

@@ -1057,6 +1057,7 @@
     display: inline-block;
     margin: ($baseline-v/2) 0;
     box-shadow: none;
+
   }
 
   .file--upload {
@@ -1141,7 +1142,7 @@
   }
 
   .step__label {
-    margin-right: ($baseline-h/4);
+    @include margin-right(($baseline-h/4));
   }
 
   .leaderboard__title{

openassessment/xblock/static/sass/oa/views/_oa-base.scss

@@ -263,6 +263,11 @@
         .ico {
           @extend %icon-2;
         }
+
+        .icon-caret-right:before {
+          @include transform(rotate(bidi-rotate-angle(0deg)));
+        }
+
       }
 
       // STATE: actions has an error

openassessment/xblock/static/sass/xb/elements/_controls.scss

@@ -87,7 +87,7 @@
   }
 
   .copy {
-    margin-right: ($baseline-v/2);
+    @include margin-right(($baseline-v/2));
   }
 }
 

openassessment/xblock/static/sass/xb/elements/_forms.scss

@@ -108,7 +108,7 @@
     }
 
     .option__input {
-      margin-right: ($baseline-v/2);
+      @include margin-right(($baseline-v/2));
 
       // STATE: checked
       &:checked {

openassessment/xblock/static/sass/xb/utilities/_reset.scss

@@ -370,7 +370,7 @@
   fieldset {
     border: 1px solid #c0c0c0;
     margin: 0 2px;
-    padding: 0.35em 0.625em 0.75em;
+    @include padding(0.35em, 0.625em, 0.75em, 0.625em);
   }
 
   /**