Fix empty string comparison issues in the codebase (#16686)

Automatic Merge

store/sqlstore/command_webhook_store.go

@@ -39,7 +39,7 @@ func (s SqlCommandWebhookStore) createIndexesIfNotExists() {
 }
 
 func (s SqlCommandWebhookStore) Save(webhook *model.CommandWebhook) (*model.CommandWebhook, error) {
-	if len(webhook.Id) > 0 {
+	if webhook.Id != "" {
 		return nil, store.NewErrInvalidInput("CommandWebhook", "id", webhook.Id)
 	}