[BUG] Mouse cursor changes theme when over the alacritty window

[chasinglogic]

Describe the bug

My mouse cursor changes to a weird default white one when over the Alacritty window. This does not happen with other snaps installed on the system like Firefox.

To Reproduce

Steps to reproduce the behavior:

1. Open the Alacritty snap on Ubuntu 24.04 default desktop
2. Move the mouse cursor over the Alacritty window
3. Observe that the cursor changes from the black with white outline default theme to an all white cursor with a different shape

Expected behavior

A clear and concise description of what you expected to happen.

Screenshots

Screencast.from.2024-04-30.18-03-47.webm

Environment (please complete the following information):

• OS: Ubuntu 24.04 LTS
• Alacritty Version: 0.13.2
• Graphics Cards: Intel integrated graphics