Investigate cally calendar for the date picker

[leagrdv]

We would need to investigate whether the "Cally" library can support the requirements defined in the date picker design. The design is finalized, so we can evaluate whether Cally would meet the specific UX needs like month/year switching, range selection, and general interaction patterns. The goal is to understand if Cally is a viable option or if we should look into alternatives.

[leagrdv]

Findings

• Year and month views are not handled by Cally (codepen on how it could be integrated: https://codepen.io/WickyNilliams/pen/GRLYYRP)
• Backwards range selection is available in Cally but is against design requirements

Needs to check

• Disabling specific dates (not just selecting a from-to)

Resolution
Some text content needs to be added on our side that should be localized and it might not be the best option.
Investigate more and find out if there are other calendar libraries (maybe this one, this one or this one) that would handle localization better

[alionazherdetska]

I agree with Myrta's findings presented at the dev roundtable. Air datepicker is the better option because:

• It natively supports month/year views without requiring custom workarounds
• It handles our range selection requirements correctly
• Although it's bigger than Cally (47.8 kB vs 21.3 kB), the bundle size is justified by the comprehensive functionality it provides

Cally doesn't meet our needs because:

• The lack of built-in month/year navigation would require us to build significant additional functionality on top of it, which defeats the purpose of using a library