[devtools] Fixed sorting Cache Storage items by name

Fixed regression introduced in #152d4e13
(https://chromium-review.googlesource.com/c/chromium/src/+/1566120/5/third_party/blink/renderer/devtools/front_end/resources/ServiceWorkerCacheViews.js)
by updating the comparator to use _name instead of _path too

Bug: chromium:1000278
Change-Id: I258a3122f880be061b312a3336a47cefa28721eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1782563Reviewed-by: Erik Luo <luoe@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jan Scheffler <janscheffler@google.com>
Cr-Commit-Position: refs/heads/master@{#693793}

third_party/blink/renderer/devtools/front_end/resources/ServiceWorkerCacheViews.js

@@ -159,7 +159,7 @@ Resources.ServiceWorkerCacheView = class extends UI.SimpleView {
     const columnId = this._dataGrid.sortColumnId();
     let comparator;
     if (columnId === 'name')
-      comparator = (a, b) => a._path.localeCompare(b._path);
+      comparator = (a, b) => a._name.localeCompare(b._name);
     else if (columnId === 'contentType')
       comparator = (a, b) => a.data.mimeType.localeCompare(b.data.mimeType);
     else if (columnId === 'contentLength')