chore: bump version to 4.0.4

Create release containing typo fixes (#580).

cmd/cheat/main.go

@@ -17,7 +17,7 @@ import (
 	"github.com/cheat/cheat/internal/installer"
 )
 
-const version = "4.1.0"
+const version = "4.0.4"
 
 func main() {
 
@@ -185,9 +185,6 @@ func main() {
 	case opts["<cheatsheet>"] != nil:
 		cmd = cmdView
 
-	case opts["--tag"] != nil && opts["--tag"].(string) != "":
-		cmd = cmdList
-
 	default:
 		fmt.Println(usage())
 		os.Exit(0)