Defect/SG-1083 - Fix SSO Form Validation (#4791)

* SG-1083 - Refactor SSO form validation to work per EC requirements

* Move SSO component into its own folder for better folder management for future components in auth.

* Defect SG-1086 - Domain verification table: Change domain name from anchor tag to button + add title

* SG-1083 - Send null instead of empty string for sso identifier to avoid duplicate key in database issues.

* SG-1086 - Add button type to domain verification button to pass lint rules.

apps/web/src/locales/en/messages.json

@@ -6146,6 +6146,9 @@
   "lastChecked": {
     "message": "Last checked"
   },
+  "editDomain": {
+    "message": "Edit domain"
+  },
   "domainFormInvalid": {
     "message": "There are form errors that need your attention"
   },
@@ -6395,5 +6398,8 @@
   },
   "errorReadingImportFile": {
     "message": "An error occurred when trying to read the import file"
+  },
+  "selectionIsRequired": {
+    "message": "Selection is required."
   }
 }