how to Rollback "/home" and "/" snapshots

I wanted to take a moment to express my deep appreciation for the remarkable tool you've created - Btrbk. It has undoubtedly revolutionized the way to manage system snapshots and backups it made my life incredibly easier...

However recently i encountered a slight hiccup related to rollback form snapshots (not backup).. I successfully created snapshots of my system with this config.

`/etc/btrbk/btrbk.conf`
```
timestamp_format long

volume /
snapshot_dir /btrbk_snapshots
subvolume /
snapshot_preserve_min 12h
snapshot_preserve 24h
subvolume /home
snapshot_preserve_min 48h
snapshot_preserve 7d
```
and created this directory `/btrbk_snapshots`

and i used this command to take snapshot `sudo btrbk snapshot`

now i have two snapshot present as expected
`/btrbk_snapshots/ROOT.20230824T0307`
`/btrbk_snapshots/home.20230824T0307`

and output of `sudo btrfs subvolume list /` is
```
ID 256 gen 42 top level 5 path @
ID 257 gen 40 top level 5 path @home
ID 258 gen 16 top level 5 path @srv
ID 259 gen 40 top level 5 path @tmp
ID 260 gen 11 top level 5 path @.snapshots
ID 261 gen 40 top level 5 path @var_log
ID 262 gen 36 top level 5 path @var_pkg
ID 263 gen 29 top level 256 path btrbk_snapshots/ROOT.20230824T0307
ID 264 gen 30 top level 256 path btrbk_snapshots/home.20230824T0307
```

### The main question is : How to rollback "/home" and "/" snapshot

I found myself a bit perplexed. and I've diligently **reviewed the documentation**, yet I'm still struggling to grasp the precise steps for performing a snapshot rollback

I'll really appreciate your willingness to help to provide me **exact command or script in this situation** to preform snapshot rollback

I tried my best to provide you all little information and if any left please let me know

Once again. Thank-you for this remarkable project 🙆‍♂️

Start with the btrbk rollback documentation and compare it with the supplied btrbk.conf and btrfs subvolume list; no source file or test is named. Done means clearly documenting the supported rollback procedure for both the root and /home snapshots, including the relevant commands or script.

Written by the indexing model from the issue text.