Creating a hotkeys context for viewer

Packages/ohif-hotkeys/client/lib/index.js

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+import './routes';

Packages/ohif-hotkeys/client/lib/routes.js

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+import { Router } from 'meteor/iron:router';
+import { Session } from 'meteor/session';
+import { hotkeys } from 'meteor/ohif:hotkeys';
+
+Router.onBeforeAction(function() {
+    const lastRoute = Session.get('lastRoute');
+    const currentRoute = this.router.current().route.getName();
+    if (currentRoute !== lastRoute) {
+        hotkeys.switchToContext(null);
+        Session.set('lastRoute', currentRoute);
+    }
+
+    this.next();
+});