ino-monthpicker: Skipping next and previous years on arrow click

[silentHoo]

Describe the bug

When navigating through years by clicking the arrow icons, a click will either jump over multiple previous or next years. Sometimes another month is marked as well.

To Reproduce

[janivo]

There are some issues with the flatpickr library. See these issues:

• https://github.com/flatpickr/flatpickr/issues/2074
• https://github.com/flatpickr/flatpickr/issues/2236
• https://github.com/flatpickr/flatpickr/issues/2138

What I tried:

• Updating to the latest flatpickr version (4.6.6)
• Suppressing the event handlers of the arrows
• Replacing the year change arrows

There was no way to continuously disable the arrow change handlers. As soon as a valid date was selected and the month-picker was reopened to select another date, the bugs occurred again.

[silentHoo]

This ticket is related to https://github.com/inovex/elements/issues/257 and maybe fixes this bug.

[silentHoo]

Closed due to merged PR.