Add pfSense API widget (#1491)

* Add support for pfSense API

* Fix linting issues

* remove a line

* rename cpu to load in default block

* Re-order container blocks to ensure defaults show

* simplify pfsense widget, rename, limit blocks

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

public/locales/en/common.json

@@ -514,6 +514,16 @@
         "origin_ip": "Origin IP",
         "status": "Status"
     },
+    "pfsense": {
+        "load": "Load Avg",
+        "memory": "Mem Usage",
+        "wanStatus": "WAN Status",   
+        "up": "Up",   
+        "down": "Down",   
+        "temp": "Temp",   
+        "disk": "Disk Usage",        
+        "wanIP": "WAN IP"
+    },
     "proxmoxbackupserver": {
         "datastore_usage": "Datastore",
         "failed_tasks_24h": "Failed Tasks 24h",