update current translations to be more generic

gso/translations/en-GB.json

 {
     "forms": {
         "fields": {
-            "confirm": "Confirm you are good with this",
-            "confirm_info": "Check the output of the playbook"   
-	}
+            "confirm": "Confirm",
+            "confirm_info": "Please verify this form looks correct."
+	    }
     },
     "workflow": {
-         "modify_isis_metric": "Modify the ISIS metric"
+         "modify_isis_metric": "Modify the ISIS metric."
     }
 }