fix: 解决反向代理匹配规则为空之后无法删除的问题 (#4777)

Refs https://github.com/1Panel-dev/1Panel/issues/4771

backend/app/dto/request/website.go

@@ -178,7 +178,7 @@ type WebsiteProxyConfig struct {
 	CacheTime int               `json:"cacheTime"  `
 	CacheUnit string            `json:"cacheUnit"`
 	Name      string            `json:"name" validate:"required"`
-	Modifier  string            `json:"modifier" validate:"required"`
+	Modifier  string            `json:"modifier"`
 	Match     string            `json:"match" validate:"required"`
 	ProxyPass string            `json:"proxyPass" validate:"required"`
 	ProxyHost string            `json:"proxyHost" validate:"required"`

frontend/src/views/website/website/config/basic/proxy/create/index.vue

@@ -126,7 +126,6 @@ const proxyForm = ref<FormInstance>();
 const rules = ref({
     name: [Rules.requiredInput, Rules.appName],
     match: [Rules.requiredInput],
-    modifier: [Rules.requiredInput],
     cacheTime: [Rules.requiredInput, checkNumberRange(1, 65535)],
     proxyPass: [Rules.requiredInput],
     proxyHost: [Rules.requiredInput],