fix: ui of webhook segment (#5452)

* fix: ui of webhook segment

* feat: use toggle group component

* fix: default bug

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

apps/web/public/static/locales/en/common.json

@@ -126,7 +126,6 @@
   "webhook_updated_successfully": "Webhook updated successfully!",
   "webhook_removed_successfully": "Webhook removed successfully!",
   "payload_template": "Payload Template",
-  "payload":"Payload",
   "dismiss": "Dismiss",
   "no_data_yet": "No data yet",
   "ping_test": "Ping test",