System Info reports OS: win32 on Windows 10 64-bit, which is misleading

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have custom nodes enabled

### What happened?

I want to report a misleading value shown in **Settings > About > System Info**.

On a Windows 10 64-bit system, ComfyUI frontend is displaying:

> OS: win32

That is confusing and looks incorrect, because this machine is clearly running a 64-bit Windows environment. See screenshot below.

### Steps to Reproduce

1. Open Settings dialog on Windows x64
2. Go to About tab

### How is this affecting you?

Minor inconvenience

### ComfyUI Frontend Version

1.42.15

### Browser

Firefox

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-11967-System-Info-reports-OS-win32-on-Windows-10-64-bit-which-is-misleading-3576d73d365081908e50c0abba0e99a8) by [Unito](https://www.unito.io)

Start in the frontend implementation for Settings > About > System Info and trace where the displayed OS value comes from. Verify the result on Windows x64 and consider the issue done when the system information no longer misleadingly reports the platform as win32.

Written by the indexing model from the issue text.