fix: update chatbot help doc link on the create app form

web/app/components/app/create-app-modal/index.tsx

     'chat': {
       title: t('app.types.chatbot'),
       description: t('app.newApp.chatbotUserDescription'),
-      link: 'https://docs.dify.ai/guides/application-orchestrate/conversation-application?fallback=true',
+      link: 'https://docs.dify.ai/guides/application-orchestrate#application_type',
     },
     'advanced-chat': {
       title: t('app.types.advanced'),