Close/Exit Button Only Responds To Clicks In Upper Quarter

### Microsoft PowerToys version

0.100.2

### Installation method

GitHub

### Area(s) with issue?

General

### Steps to reproduce

Open PowerToys main window (running Windows 10 if relevant), attempt to close window.

### ✔️ Expected Behavior

Full "X" button should respond to clicks.

### ❌ Actual Behavior

Only closes when user clicks the extreme top-right corner of button.

### Upload Bug Report ZIP-file

_No response_

### Additional Information

OS Name Microsoft Windows 10 Pro
Version 10.0.19045 Build 19045

### Other Software

_No response_

Start by reproducing the issue in the PowerToys main window on Windows 10, using the reported version 0.100.2. Locate the main window's close button and inspect its clickable area. Done means the full visible X button responds to clicks, not only its upper-right portion.

Written by the indexing model from the issue text.