Upgrade to use searchv2

[mike-petrov]

closes #234

Signed-off-by: Mikhail Petrov mike@nspcc.ru

[mike-petrov]

npm tests (18.x): This is a scheduled Ubuntu 20.04 retirement. Ubuntu 20.04 LTS runner will be removed on 2025-04-15. For more details, see actions/runner-images#11101

[mike-petrov]

I didn't manage to support tree structure as before: previously, we had FileName attribute for all objects and you could also specify FilePath by which objects were displayed in the tree structure.

Right now, only fields you explicitly specify are being sent. It's ok for required fields, but it's a problem for optional ones because they don't get included at all.

I see two options here: either make the FilePath field mandatory (then we will keep the tree structure, but lose access to files that do not have this attribute), or remove tree structure and show all files in one list, like now:

initial:

filtered:

second page:

[roman-khimov]

These can be separate views. NeoFS is flat object storage by definition, so the default can be a list based on OIDs/attributes of any kind. Then some toggle can switch us to a tree view, but with a note that only objects with "FilePath" attribute are gonna be shown. It's OK, we're presenting raw NeoFS functionality here more than trying to create any polished object management UI like some other projects.

[mike-petrov]

tree view / list view button: