[Enhancement] Calendar component - enable prev and next month

[alxzak]

• [x] I have written a good issue

Describe the enhancement

In month view, the last days in the previous month and the first couple of day in the next month are sometimes visible, but disabled.

Describe the solution you'd like

We would like to enable these dates, and when you click on them, you should jump to the correspondant month.

Have you considered any alternatives?

no

Are there any additional context?

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Checklist:

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