fix(windows): Fix cursor visibility toggle not working on Windows

[keufcp]

Summary

This PR fixes an issue where window.set_cursor_visible(false) does not work correctly on Windows.
I rewrote #1203.

Tests

1. cargo test -> PASS
2. cargo fmt --check -> PASS
3. cargo clippy -- -D warnings -> PASS only for the scope of this PR. There are multiple warnings in the code unrelated to this PR, which are not addressed.
4. Added main_window.set_cursor_visible(false); to line 41 of tao\examples\parentwindow.rs and tested. See the video.
5. Tested with tao\examples\cursor.rs. Works normally.
6. Created a test TauriApp and tested the behavior. See the video.
   Setup - Created a new Tauri command and implemented it to be called from the frontend:

// src-tauri\src\lib.rs
#[tauri::command]
fn hide_cursor(window: tauri::WebviewWindow) {
    let _ = window.set_cursor_visible(false);
}

#[tauri::command]
fn show_cursor(window: tauri::WebviewWindow) {
    let _ = window.set_cursor_visible(true);
}

2026-06-19_tao.mp4

Environment

rustup show
Default host: x86_64-pc-windows-msvc
rustup home:  C:\Users\keufcp\.rustup

installed toolchains
--------------------
stable-x86_64-pc-windows-msvc (active, default)

active toolchain
----------------
name: stable-x86_64-pc-windows-msvc
active because: it's the default toolchain
installed targets:
  aarch64-linux-android
  wasm32-unknown-unknown
  wasm32-wasip2
  x86_64-linux-android
  x86_64-pc-windows-msvc

OS name:                 Microsoft Windows 11 Pro
OS version:              10.0.26200 N/A Build 26200
BIOS version:            American Megatrends Inc. 1825, 2025/10/09

Closes tauri-apps/tauri#10231

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Package Changes Through d7ef9f5

There are 1 changes which include tao with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
tao	0.35.3	0.36.0

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[Legend-Master]

Didn't look at the code closely yet, just want to first say it works in the tauri's api example for me now, good job!