Adding sidebar animation back

web/sass-files/sass/partials/_sidebar--right.scss

@@ -8,6 +8,11 @@
     padding: 0;
     background: #fff;
     @include single-transition(transform, 0.5s, ease);
+    @include translateX(400px);
+
+    &.move--left {
+        @include translateX(0);
+    }
 
     .post-body {