Cannot tab past first calendar in lefthand sidebar

Steps to reproduce

1. Try tabbing the app navigation
2. Navigation indicator is stuck on first calendar in list.

Expected behavior

I can tab to the end

Actual behaviour

I'm stuck on the first calendar in the list

Calendar app version

4.7.0-beta.3

CalDAV-clients used

No response

Browser

FF 124

Client operating system

Ubunut 20

Server operating system

Ubunut 20

Web server

Apache

Database engine version

MySQL

PHP engine version

PHP 8.2

Nextcloud version

No response

Updated from an older installed version or fresh install

None

List of activated apps

No response

Nextcloud configuration

No response

Web server error log

No response

Log file

No response

Browser log

[Vue warn]: Error in v-on handler: "TypeError: this.$refs.actions.$refs.menuButton is undefined"

found in

---> <NcAppNavigationItem>
       <CalendarListItem> at src/components/AppNavigation/CalendarList/CalendarListItem.vue
         <Draggable>
           <CalendarList> at src/components/AppNavigation/CalendarList.vue
             <NcAppNavigation>
               <NcContent>
                 <Calendar> at src/views/Calendar.vue
                   <App> at src/App.vue
                     <Root> vue.runtime.esm.js:4625
    VueJS 63
    addCalendar calendars.js:71
    wrappedMutationHandler vuex.esm.js:844
    commitIterator vuex.esm.js:466
    commit vuex.esm.js:465
    _withCommit vuex.esm.js:624
    commit vuex.esm.js:464
    boundCommit vuex.esm.js:409
    loadCollections calendars.js:680
    loadCollections calendars.js:679
    wrappedActionHandler vuex.esm.js:851
    dispatch vuex.esm.js:516
    boundDispatch vuex.esm.js:406
    beforeMount Calendar.vue:183
    VueJS 27
    <anonymous> main.js:72
    <anonymous> calendar-main.js:307258
    <anonymous> calendar-main.js:307260

Additional info

No response

Start by reproducing the tab sequence in Firefox and inspect src/components/AppNavigation/CalendarList/CalendarListItem.vue, using the reported menuButton ref warning as the first lead. Check the surrounding CalendarList.vue navigation flow as needed. Done means keyboard focus can move through the lefthand calendar list to its end without getting stuck or producing the reported error.