refactor to use app package instead of service

refactor app to be composable

internal/utils/browser/browser.go

@@ -0,0 +1,24 @@
+package browser
+
+import (
+	"fmt"
+	"os/exec"
+	"runtime"
+)
+
+// Taken and modified from https://gist.github.com/hyg/9c4afcd91fe24316cbf0
+func Open(url string) error {
+	var err error
+
+	switch runtime.GOOS {
+	case "linux":
+		err = exec.Command("xdg-open", url).Start()
+	case "windows":
+		err = exec.Command("rundll32", "url.dll,FileProtocolHandler", url).Start()
+	case "darwin":
+		err = exec.Command("open", url).Start()
+	default:
+		err = fmt.Errorf("unsupported platform")
+	}
+	return err
+}