[Feature]: LGSM command for restoring backups

### User story

As a server admin, I want LinuxGSM to handle backup restoration for me to minimize the downtime and work needed when restoring backups.

### Game

All

### Linux distro

Other

### Command

command: backup

### Further information

The command would use automatically or manually created backups to quickly restore the gameserver to a specific point in time by overwriting the backed up files. To avoid problems caused by newly created files that don't exist in a backup (such as new saves or player profiles), the entire installation should be deleted and replaced with the contents of the backup.

Restore a backup (prompt the user by listing all existing backups):
`./gameserver restore-backup`

Restore the latest backup:
`./gameserver restore-backup latest`

Restore a specific backup:
`./gameserver restore-backup "gameserver-2024-02-05-040000.tar.gz"`

Possible Problems:
- Replacing LGSM from within LGSM may prove difficult.
- Skipping the restoration of LGSM however could lead to incompatibilities between gameserver and LGSM

#
A future implementation of this/another command could also be useful for automatically applying manually created "backups" that have been prepared to introduce changes to game configurations, maps, mods or rules by overwriting only certain files. However, this will require a completely new backup procedure, as regular restoring of a backup will need to deal with unwanted files not included in the backup as listed above.

Restore a manually prepared "backup":
`./gameserver restore-backup "special-event.tar.gz"`

Start at the `./gameserver` command entry point and trace the existing `backup` command and backup layout. Define how interactive, latest, and named restores should select archives, replace the installation, and handle LGSM itself. Done means all three invocation forms restore the selected backup without leaving files that were absent from it.

Written by the indexing model from the issue text.