FileManager: fixed messed up navbar at fs-root /

vispa/extensions/file2/static/js/vue/navbar.js

@@ -30,12 +30,11 @@ define([
     }},
     computed: {
       parts: function() {
-        return this.path.split("/");
+        return this.path.split("/").filter(function(p, i){return !i || p;});
       },
       paths: function() {
         var parts = this.parts;
         return parts.map(function(p, i){return parts.slice(0, i + 1).join("/") || "/"});
-
       },
       basename: function() {
         return this.parts.slice(-1)[0] || this.path;