Fix version/channel linking

main.go

@@ -4,6 +4,12 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/home"
 )
 
+// version will be set through ldflags, contains current version
+var version = "undefined"
+
+// channel can be set via ldflags
+var channel = "release"
+
 func main() {
-	home.Main()
+	home.Main(version, channel)
 }