Added custom API widget (#1858)

* Added custom API widget

* Rename custom widget to customapi

---------

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

src/widgets/customapi/widget.js

@@ -0,0 +1,8 @@
+import genericProxyHandler from "utils/proxy/handlers/generic";
+
+const widget = {
+  api: "{url}",
+  proxyHandler: genericProxyHandler,
+};
+
+export default widget;