Add Kopia widget (#1018)

* Add Kopia widget

* Add Kopia widget

* Modify Kopia widget blocks

* Kopia next run / last run

---------

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

src/widgets/kopia/widget.js

@@ -0,0 +1,14 @@
+import genericProxyHandler from "utils/proxy/handlers/generic";
+
+const widget = {
+  api: "{url}/{endpoint}",
+  proxyHandler: genericProxyHandler,
+
+  mappings: {
+    status: {
+      endpoint: "api/v1/sources",
+    },
+  },
+};
+
+export default widget;