fix: clear firewall rule description (#12491)

#### What this PR does / why we need it?

Refs https://github.com/1Panel-dev/1Panel/issues/12488

#### Summary of your change

#### Please indicate you've done the following:

- [ ] Made sure tests are passing and test coverage is added if needed.
- [ ] Made sure commit message follow the rule of [Conventional Commits specification](https://www.conventionalcommits.org/).
- [ ] Considered the docs impact and opened a new docs issue or PR with docs changes if needed.

agent/app/repo/host.go

@@ -165,6 +165,9 @@ func (h *HostRepo) SaveFirewallRecord(firewall *model.Firewall) error {
 			firewall.Strategy,
 		).First(&data).Error
 	}
+	if data.ID != 0 {
+		firewall.ID = data.ID
+	}
 	return global.DB.Save(firewall).Error
 }