fix: update macOS icon sizes

[cledoux95]

Summary

• Updated macOS app icons (128x128.png, 128x128@2x.png, icon.icns, icon.png) to correct sizes for proper display in Dock, Finder, and app switcher

Updated icon size

Test plan

• Build the macOS app (npm run build) and verify the icon renders at correct size in the Dock
• Verify icon appearance in Finder and app switcher (Cmd+Tab)

[johannesjo]

Thank you very much for this and sorry for the late reply. Somehow I wasn't receiving notifications for PRs opened here.

Icon padding affects Linux

The updated PNGs (icon.png, 128x128.png, 128x128@2x.png) have inner transparent padding to fix macOS Dock sizing — but these same files are used by Linux (taskbar, tray, BrowserWindow). macOS never actually reads the PNGs:

• macOS build: electron-builder uses icon.icns (already present in build/)
• macOS runtime: getIconPath() in electron/main.ts:69 returns undefined on non-Linux
• Linux build + runtime: uses icon.png and the 128x128 variants exclusively

Suggested fix: Revert the 3 PNG files to their originals (no padding) and keep only the icon.icns change. This fixes macOS without shrinking Linux icons. No config or code changes needed.

[cledoux95]

All set

[johannesjo]

Thank you very much!