feat: 针对 discord 登录配置使用新版设置方案

controller/option.go

@@ -71,8 +71,8 @@ func UpdateOption(c *gin.Context) {
 			})
 			return
 		}
-	case "DiscordOAuthEnabled":
-		if option.Value == "true" && common.DiscordClientId == "" {
+	case "discord.enabled":
+		if option.Value == "true" && system_setting.GetDiscordSettings().ClientId == "" {
 			c.JSON(http.StatusOK, gin.H{
 				"success": false,
 				"message": "无法启用 Discord OAuth，请先填入 Discord Client Id 以及 Discord Client Secret！",