[Bug]: Windows: Incomplete switching from Dark Mode makes texts impossible to read

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

- [x] This issue is **not** already reported on Github (I've searched it).
- [x] This is a **bug**, not a question or a configuration issue.
- [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

I hardly cannot read anything because background color is dark and text is black. The background color hasn't switched back to a light color when switching from dark mode to light mode. Text color switches when changing from dark to ligth as it should.
This bug could be connected to this bug: https://github.com/nextcloud/desktop/issues/7792

### Steps to reproduce

1. Enable dark mode
2. Enable light mode
3. Most background colors are still dark, Some text color are also still white (which is acceptable in combination with black background color) but most text is black.
4. Only logout/login or reboot helps.

### Expected behavior

Background color should switch to a light color when re-activating light mode.

### Which files are affected by this bug

all gui elements

### Operating system

Windows

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

Windows 10

### Package

Official Windows MSI

### Nextcloud Server version

30.0.12

### Nextcloud Desktop Client version

3.16.6

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

Updated from a minor version (ex. 3.4.2 to 3.4.4)

### 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