Mouse Buttons Don't Register for Keybinds

Summary

When trying to set a keybind to one of my mouse buttons, specifically the side buttons, Fluxer doesn't register anything being pressed.

Steps to reproduce

1. Go to settings, then keybinds.
2. Click on the keybind you want to change.
3. Attempt to change keybind, press mouse button, nothing happens.

Environment (optional)

stable (9494cce) Desktop stable 0.0.8 Deployed 26m Electron 39.2.7 Windows 11 10.0.26200 (x64)