Show outbound traffic in outbounds table (#1711)

* store outbound traffic in database

* show outbound traffic in outbounds table

* add refresh button

xray/api.go

@@ -213,6 +213,7 @@ func (x *XrayAPI) GetTraffic(reset bool) ([]*Traffic, []*ClientTraffic, error) {
 			continue
 		}
 		isInbound := matchs[1] == "inbound"
+		isOutbound := matchs[1] == "outbound"
 		tag := matchs[2]
 		isDown := matchs[3] == "downlink"
 		if tag == "api" {
@@ -221,8 +222,9 @@ func (x *XrayAPI) GetTraffic(reset bool) ([]*Traffic, []*ClientTraffic, error) {
 		traffic, ok := tagTrafficMap[tag]
 		if !ok {
 			traffic = &Traffic{
-				IsInbound: isInbound,
-				Tag:       tag,
+				IsInbound:  isInbound,
+				IsOutbound: isOutbound,
+				Tag:        tag,
 			}
 			tagTrafficMap[tag] = traffic
 			traffics = append(traffics, traffic)