feat: improve change editor menu keyboard navigation (#831)

app/assets/javascripts/components/NotesList.tsx

@@ -6,6 +6,10 @@ import { SNNote } from '@standardnotes/snjs';
 import { observer } from 'mobx-react-lite';
 import { FunctionComponent } from 'preact';
 import { NotesListItem } from './NotesListItem';
+import {
+  FOCUSABLE_BUT_NOT_TABBABLE,
+  NOTES_LIST_SCROLL_THRESHOLD,
+} from '@/views/constants';
 
 type Props = {
   application: WebApplication;
@@ -16,9 +20,6 @@ type Props = {
   paginate: () => void;
 };
 
-const FOCUSABLE_BUT_NOT_TABBABLE = -1;
-const NOTES_LIST_SCROLL_THRESHOLD = 200;
-
 export const NotesList: FunctionComponent<Props> = observer(
   ({
     application,