Firefox: Trapped inside calendar when using keyboard tab

[stevefrenzel]

Versions

• vue: 2.6.11
• vue-datetime: 1.0.0-beta.10
• luxon: 1.22.0
• Firefox: 94.0.1

Description:

When accessing vue-datetime in Firefox via tabbing on the keyboard, it is not possible to tab to the next element and therefore close the calendar. The user can only tab to the previous component but cannot move forward.

Steps To Reproduce:

Visit the official demo website and tab through while using Firefox: https://mariomka.github.io/vue-datetime/