snappier tab animations

tabby-core/src/components/appRoot.component.scss

@@ -88,7 +88,7 @@ $side-tab-width: 200px;
         padding: 0 12px;
         flex: 0 0 auto;
         border-bottom: 2px solid transparent;
-        transition: 0.25s all;
+        transition: 0.125s all ease-out;
         font-size: 12px;
 
         text-transform: uppercase;