src/vs/workbench/contrib/terminal/browser/links/terminalLink.ts/TerminalLink/_isModifierDown
class TerminalLink:	private _isModifierDown(event: MouseEvent | KeyboardEvent): boolean {
		const multiCursorModifier = this._configurationService.getValue<'ctrlCmd' | 'alt'>('editor.multiCursorModifier');
		if (multiCursorModifier === 'ctrlCmd') {
			return !!event.altKey;
		}
		return isMacintosh ? event.metaKey : event.ctrlKey;
	}