make the original file name in const

internal/adapters/data/ssh_config_file/backup.go

@@ -136,7 +136,7 @@ func (r *Repository) createOriginalBackupIfNeeded() error {
 	}
 
 	configDir := filepath.Dir(r.configPath)
-	originalBackupPath := filepath.Join(configDir, "config.original.backup")
+	originalBackupPath := filepath.Join(configDir, OriginalBackupName)
 
 	if _, err := r.fileSystem.Stat(originalBackupPath); err == nil {
 		return nil

internal/adapters/data/ssh_config_file/crud.go

@@ -23,10 +23,11 @@ import (
 )
 
 const (
-	MaxBackups     = 10
-	TempSuffix     = ".tmp"
-	BackupSuffix   = "lazyssh.backup"
-	SSHConfigPerms = 0o600
+	MaxBackups         = 10
+	TempSuffix         = ".tmp"
+	BackupSuffix       = "lazyssh.backup"
+	SSHConfigPerms     = 0o600
+	OriginalBackupName = "config.original.backup"
 )
 
 // filterServers filters servers based on the query string.