Windows Cursor Integration

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Currently, when using a WSL gui app, it uses the default x11 cursor theme. Furthermore, some apps such as firefox have a different cursor when hovered over the window border. This is frustrating because it reduces the immersion between windows applications and WSLg applications.

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The default x11 cursor theme and the cursor sometimes found in the window border should be replaced with windows 10's default cursor.

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An alternative could be to create a cursor theme for Windows 10 cursors that can be installed in WSL.

Additional context
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No implementation files, entry points, or tests are named. Start by locating WSLg's cursor handling for X11 and Wayland applications, then determine how Windows 10's default cursor can be used for both the application cursor and Firefox's window-border cursor. Done means WSLg applications consistently display the Windows cursor theme.