Fix underscore import locations

client/galaxy/scripts/mvc/library/library-librarylist-view.js

@@ -1,5 +1,5 @@
 import $ from "jquery";
-import _ from "libs/underscore";
+import _ from "underscore";
 import Backbone from "backbone";
 import { getGalaxyInstance } from "app";
 import { Toast } from "ui/toast";

client/galaxy/scripts/viz/trackster/filters.js

@@ -1,6 +1,6 @@
 import $ from "jquery";
 import _l from "utils/localization";
-import _ from "libs/underscore";
+import _ from "underscore";
 import { getGalaxyInstance } from "app";
 
 /**

client/galaxy/scripts/viz/trackster/painters.js

@@ -1,4 +1,4 @@
-import _ from "libs/underscore";
+import _ from "underscore";
 // Constants specific to feature tracks moved here (HACKING, these should
 // basically all be configuration options)
 const BEFORE = 1001;

client/galaxy/scripts/viz/trackster/slotting.js

@@ -1,4 +1,4 @@
-import _ from "libs/underscore";
+import _ from "underscore";
 var extend = _.extend;
 
 // HACK: LABEL_SPACING is currently duplicated between here and painters