Add encrypt subscription ON/OFF switch

Co-Authored-By: SudoSpace <79229394+sudospaes@users.noreply.github.com>

web/entity/entity.go

@@ -55,6 +55,7 @@ type AllSetting struct {
 	SubCertFile        string `json:"subCertFile" form:"subCertFile"`
 	SubKeyFile         string `json:"subKeyFile" form:"subKeyFile"`
 	SubUpdates         int    `json:"subUpdates" form:"subUpdates"`
+	SubEncrypt         bool   `json:"subEncrypt" form:"subEncrypt"`
 	SubShowInfo        bool   `json:"subShowInfo" form:"subShowInfo"`
 }