refactor: remove utils pkg

BREAKING CHANGE: utils package has been removed in favor of specific new
packages (http, crypto, strings)

pkg/utils/browser.go

@@ -1,26 +0,0 @@
-package utils
-
-import (
-	"fmt"
-	"log"
-	"os/exec"
-	"runtime"
-)
-
-func OpenBrowser(url string) {
-	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")
-	}
-	if err != nil {
-		log.Fatal(err)
-	}
-}