fix typescript typings

lib/index.d.ts

@@ -378,7 +378,6 @@ export namespace Systeminformation {
     uefi: boolean | null;
     hypervizor?: boolean;
     remoteSession?: boolean;
-    hypervisor?: boolean;
   }
 
   interface UuidData {

lib/util.js

@@ -423,6 +423,11 @@ function powerShellRelease() {
 
 function powerShell(cmd) {
 
+  const pattern = [
+    '[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)',
+    '(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]))'
+  ].join('|');
+
   if (_psPersistent) {
     const id = Math.random().toString(36).substring(2, 12);
     return new Promise((resolve) => {
@@ -467,7 +472,7 @@ function powerShell(cmd) {
           }
           if (child && child.pid) {
             child.stdout.on('data', function (data) {
-              result = result + data.toString('utf8');
+              result = result + data.toString('utf8').replace(pattern, '');
             });
             child.stderr.on('data', function () {
               child.kill();