[Bug]: On startup folders can't sync with error "Please choose a different location. The folder /xxx/ doesn't exist

### ⚠️ 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

The share dialog is looking incomplete.
...

debian 13 system.
I have my nextcloud desktop set to start on login. the folders its syncing are on a second drive that i mount on login and type in a password. if nextcloud desktop starts before the drive is decrypted it can't see the folders if once decrypted and force resyncing the path. only solution is to restart nextcloud desktop to get it to recheck the path

### Steps to reproduce

1. Right click on the file
2. Click on Share Options
3. The share dialog does not display the option to share by e-mail
...
1. set sync path on second drive
2. set nextcloud desktop to start on login
3. reboot
4. on login ensure nextcloud desktop starts first
5. decrypt second drive and mount
6. view behavior of path cant be found

### Expected behavior

When clicking on the share dialog, share by e-mail should be an option.
...

nextcloud desktop rescans for path that might not have existed before but does now

### Which files are affected by this bug

all

### Operating system

Linux

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

debian 13

### Package

Distro package manager

### Nextcloud Server version

31.0.9

### Nextcloud Desktop Client version

3.16.3daily

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

Updated from a minor version (ex. 3.16.1 to 3.16.2)

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

Encryption is Disabled

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

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

### Nextcloud Server logs

```shell

```

### Additional info

_No response_