[Bug]: Allow user installs on Windows

Nobody has claimed this yet.

### Checks before filing an issue

- [x] This issue doesn't reproduce on web browsers (such as in Chrome). If it does, [issue reports go to the Mattermost Server repository](https://github.com/mattermost/mattermost-server/issues).
- [x] I have checked the [issue tracker](https://github.com/mattermost/desktop/issues) and have not found an issue that matches the one I'm filing. This should include closed issues.
- [x] This issue is not a troubleshooting question. Troubleshooting questions go here: https://forum.mattermost.com/c/trouble-shoot/16.
- [x] This issue is not a feature request. You can request features and make product suggestions here: https://mattermost.com/suggestions/.
- [x] This issue reproduces on the most recent [stable version](https://github.com/mattermost/desktop/releases/latest), or the most recent [prerelease version](https://github.com/mattermost/desktop/releases) of the Mattermost Desktop App.
- [x] I have read the [contribution guidelines](https://github.com/mattermost/desktop/blob/master/CONTRIBUTING.md).

### Mattermost Desktop Version

6.1.0

### Operating System

Windows 11 x64

### Mattermost Server Version

n/a

### Steps to reproduce

Try to install msi

### Expected behavior

Ability to install without admin permissions

### Observed behavior

Cannot install due to lacking admin permissions

### Log Output

```shell
n/a
```

### Additional Information

User installs are no longer allowed? Why? https://docs.mattermost.com/deployment-guide/desktop/desktop-msi-installer-and-group-policy-install.html#deployment-considerations-for-v6-1-0

Start by reading the linked deployment-considerations documentation for the Mattermost Desktop 6.1.0 MSI installer and reproduce the installation on Windows 11 x64 without administrator permissions. Trace the MSI installer configuration and determine whether a user-scoped install is supported. Done means the MSI can be installed without admin permissions, or the supported limitation is documented.

Written by the indexing model from the issue text.