[Bug]: Ownerless shares not manageable

### ⚠️ Before submitting, please verify the following: ⚠️

- [x] This is a **bug**, not a question or a configuration issue.
- [x] This issue is **not** already reported on Github (I've searched it).
- [x] Nextcloud Server and Desktop Client are **up to date**. See [Server Maintenance and Release Schedule](https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule) and [Desktop Releases](https://nextcloud.com/install/#install-clients) for supported versions.
- [x] I agree to follow Nextcloud's [Code of Conduct](https://nextcloud.com/contribute/code-of-conduct/)

### Bug description

Unlike webUI:
Other authorized users can see, on synchronized content, a subtle Shared icon variant (really subtle), but when opening context-menu "Sharing options" there is not appearing any information, same as if it doesn't were shared by anyone.

Same authorization~level users can't unshare a file/foolder another one did share.

### Steps to reproduce

1. Right click on the (shared by others) file
2. Click on Share Options
3. The share dialog does not display other's Shared status

### Expected behavior

See what shares are applied to item by anyone (only if connected account has sharing permissions on it), and be able to change or unshare them.

### Which files are affected by this bug

No log

### Operating system

Linux

### Which version of the operating system you are running.

13/trixie/testing

### Package

Distro package manager

### Nextcloud Server version

31.0.6

### Nextcloud Desktop Client version

3.16.4

### Is this bug present after an update or on a fresh install?

Fresh desktop client install

### Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

### Are you using an external user-backend?

- [ ] Default internal user-backend
- [ ] LDAP/ Active Directory
- [ ] SSO - SAML
- [ ] Other

### Nextcloud Server logs

```shell

```

### Additional info

_No response_