Add Proxmox Backup Server Widget (#879)

* Add Proxmox Backup Server Widget

* Clarification added to Failed Tasks

* Refactor pbs to proxmoxbackupserver

* Removing property instead of recreating object

* minor code styling of proxmoxbackupserver widget

---------

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

public/locales/en/common.json

@@ -433,5 +433,11 @@
     "cloudflared": {
         "origin_ip": "Origin IP",
         "status": "Status" 
+    },
+    "proxmoxbackupserver": {
+        "datastore_usage": "Datastore",
+        "failed_tasks_24h": "Failed Tasks 24h",
+        "cpu_usage": "CPU",
+        "memory_usage": "Memory"
     }
 }