Feature: Filebrowser service widget (#5546)

Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>

src/widgets/filebrowser/widget.js

@@ -0,0 +1,14 @@
+import filebrowserProxyHandler from "./proxy";
+
+const widget = {
+  api: "{url}/api/{endpoint}",
+  proxyHandler: filebrowserProxyHandler,
+
+  mappings: {
+    usage: {
+      endpoint: "usage",
+    },
+  },
+};
+
+export default widget;