Alex krasn/bugfix on hotkeys when canvas not loaded yet (#664)

* fix: zoomIn keyboar shortcut for macOS

* fix: appId

* fix: error, handle not yet loaded canvas

src/react/components/pages/editorPage/editorPage.tsx

@@ -501,7 +501,7 @@ export default class EditorPage extends React.Component<IEditorPageProps, IEdito
      */
     private handleTagHotKey = (event: KeyboardEvent): void => {
         const tag = this.getTagFromKeyboardEvent(event);
-        const selection = this.canvas.current.getSelectedRegions();
+        const selection = this.canvas?.current?.getSelectedRegions();
 
         if (tag && selection.length) {
             const { format, type, documentCount, name } = tag;