Port Settings and OS to TypeScript

js/modules/os.js

@@ -1,7 +0,0 @@
-/* eslint-env node */
-
-exports.isMacOS = () => process.platform === 'darwin';
-
-exports.isLinux = () => process.platform === 'linux';
-
-exports.isWindows = () => process.platform === 'win32';

js/modules/types/settings.js

@@ -1,3 +0,0 @@
-const OS = require('../os');
-
-exports.isAudioNotificationSupported = () => !OS.isLinux();