fix: prevent scroll when focus (#94)

* fix: prevent scroll when focus
* fix: upgrade to version 3.0.1

.npmrc

@@ -0,0 +1,2 @@
+registry=https://registry.npmjs.org
+always-auth=false

package.json

@@ -1,6 +1,6 @@
 {
   "name": "arcade-machine",
-  "version": "3.0.0",
+  "version": "3.0.1",
   "scripts": {
     "gulp": "gulp",
     "build": "gulp build",

src/focus.service.ts

@@ -250,7 +250,7 @@ export class FocusService {
       new Event('arcfocuschanging', { bubbles: true, cancelable: true }),
     );
     if (!canceled) {
-      next.focus();
+      next.focus({ preventScroll: true });
     }
   }
 

src/global.d.ts

@@ -0,0 +1,8 @@
+interface IScrollOptions {
+  preventScroll: boolean;
+}
+
+// tslint:disable-next-line
+interface HTMLElement {
+  focus(scrollOptions?: IScrollOptions): void;
+}