Ui minor fixes (#1735)

app/javascript/dashboard/assets/scss/widgets/_sidemenu.scss

@@ -49,8 +49,10 @@
       margin-top: $space-micro;
 
       .inbox-icon {
+        $icon-top-space: -1px;
         display: inline-block;
         margin-right: $space-micro;
+        margin-top: $icon-top-space;
         min-width: $space-normal;
         text-align: center;
       }
@@ -106,13 +108,13 @@
     font-size: $font-size-medium;
     margin-top: $space-medium;
 
-    > span {
+    >span {
       margin-left: $space-one;
     }
   }
 }
 
-.menu-title + ul > li > a {
+.menu-title+ul>li>a {
   @include padding($space-micro null);
   color: $medium-gray;
   line-height: $global-lineheight;