Same treatment as the favicon: transparent background and tight
square crop so the window, app and tray icons fill their frames
instead of a tiny mark on a black box.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Switch BrowserWindow + electron-builder icon to the no-text mark
(tray was already the no-text mark). Wordmark dropped from app-icon
contexts where it doesn't read small.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>