fix:browser forwarder not supported by multi-json

infra/conf/v2ray.go

@@ -415,6 +415,10 @@ func (c *Config) Override(o *Config, fn string) {
 		c.FakeDNS = o.FakeDNS
 	}
 
+	if o.BrowserForwarder != nil {
+		c.BrowserForwarder = o.BrowserForwarder
+	}
+
 	if o.Observatory != nil {
 		c.Observatory = o.Observatory
 	}