Add missing type annotation

src/utils/machineInfo.ts

@@ -2,7 +2,7 @@ import * as os from 'os';
 import Logger from './logger';
 
 export default class MachineInfo {
-	static show() {
+	static show(): void {
 		const totalmem = (os.totalmem() / 1024 / 1024 / 1024).toFixed(1);
 		const freemem = (os.freemem() / 1024 / 1024 / 1024).toFixed(1);
 		let logger = new Logger('Machine');