Fixed broken icon that caused issues on Linux

Does what it says on the tin; according to this GitHub issue, which is responsible for this issue on GitLab, the icon is broken and causes the program not to launch.

I've compiled the program myself and can confirm this fix actually makes this work, so this MR just simply fixes that one file. Program was compiled using Debian under DistroBox, and ran in Bazzite Linux just fine.

mentioned in commit 6503c238

merged

mentioned in commit frostu8/high-voltage-ring@2e3ebc94