Feature: UrBackup Widget (#1735)

* Add initial UrBackup widget with counts of ok, errored, and out-of date clients

* Add configurable number of days since last backup before a client is considered out-of-date

* Don't count a lack of recent (or error free) image backup if image backup isn't supported.

* Add support for reporting total disk usage

* add support for "fields" from services.yaml

* fix field filtering, syntax

* Consolidate urbackup code, syntax changes

* Revert pnpm changes

* re-add urbackup-server-api

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

src/widgets/components.js

@@ -90,6 +90,7 @@ const components = {
   unifi: dynamic(() => import("./unifi/component")),
   unmanic: dynamic(() => import("./unmanic/component")),
   uptimekuma: dynamic(() => import("./uptimekuma/component")),
+  urbackup: dynamic(() => import("./urbackup/component")),
   watchtower: dynamic(() => import("./watchtower/component")),
   whatsupdocker: dynamic(() => import("./whatsupdocker/component")),
   xteve: dynamic(() => import("./xteve/component")),