Fixed the arrows position.

Author: TomMalbran

src/styles/brackets.less

@@ -726,11 +726,12 @@ a, img {
 #search-result-summary {
     .left-triangle,  .right-triangle {
         .jstree-sprite;
+        width: 10px;
         display: inline-block;
-        background-position: -2px -3px;
+        background-position: 0px 4px;
     }
     .left-triangle {
-        -webkit-transform: translateZ(0) translateY(-2px) rotate(180deg);
+        -webkit-transform: translateZ(0) translateY(-3px) rotate(180deg);
     }
     .disabled {
         opacity: 0.3;