fix: Text Generation App should not should not show embedded in website (#18880)

web/app/components/app/app-publisher/index.tsx

               >
                 {t('workflow.common.runApp')}
               </SuggestedAction>
-              {appDetail?.mode === 'workflow'
+              {appDetail?.mode === 'workflow' || appDetail?.mode === 'completion'
                 ? (
                   <SuggestedAction
                     disabled={!publishedAt}