feat: translation support

See #483

pkg/git/common.go

@@ -1,14 +1,16 @@
 package git
 
 import (
-	"fmt"
+	"errors"
 	"os"
+
+	"github.com/leonelquinteros/gotext"
 )
 
 // EnsureGitRepo ensures a git repo .git folder exists
 func EnsureGitRepo(repoPath string) error {
 	if _, err := os.Stat(repoPath); os.IsNotExist(err) {
-		return fmt.Errorf("no .git directory in %s?", repoPath)
+		return errors.New(gotext.Get("no .git directory in %s?", repoPath))
 	}
 	return nil
 }