chore: display sync interval seconds on host-set plugin forms (#1014)

* chore: 🤖 display sync_interval_seconds toggle on the forms

* chore: 🤖 remove comment

* chore: 🤖 remove extra spacing

* fix: 🐛 update title and add a description for sync_interval

* fix: 🐛 lint in translation

* chore: 🤖 fix typo, remove duplicate code

* chore: 🤖 simplify sync interval field, remove toggling

* fix: 🐛 use correct error code

* fix: 🐛 move sync interval translation to forms

* fix: 🐛 use appropiate translations label

addons/core/translations/form/en-us.yaml

@@ -143,3 +143,6 @@ host:
   label: Host
 ip_addresses:
   label: Latest IP Addresses
+sync-interval:
+  label: Sync Interval
+  help: Number of seconds between the time Boundary syncs hosts in this set.